diff --git a/app/lib/app_init.dart b/app/lib/app_init.dart
index e960f092..08af21b5 100644
--- a/app/lib/app_init.dart
+++ b/app/lib/app_init.dart
@@ -212,7 +212,7 @@ Future<void> _initDiContainer(InitIsolateType isolateType) async {
   c.tagRepoRemote = const TagRepo(TagRemoteDataSource());
   c.tagRepoLocal = TagRepo(TagSqliteDbDataSource(c.sqliteDb));
   c.taggedFileRepo = const TaggedFileRepo(TaggedFileRemoteDataSource());
-  c.searchRepo = SearchRepo(SearchSqliteDbDataSource(c.sqliteDb));
+  c.searchRepo = SearchRepo(SearchSqliteDbDataSource(c));
 
   if (platform_k.isAndroid) {
     // local file currently only supported on Android
diff --git a/app/lib/bloc/search.dart b/app/lib/bloc/search.dart
index 42f2ebe8..b2375167 100644
--- a/app/lib/bloc/search.dart
+++ b/app/lib/bloc/search.dart
@@ -62,7 +62,7 @@ abstract class SearchBlocState {
 }
 
 class SearchBlocInit extends SearchBlocState {
-  SearchBlocInit() : super(null, const SearchCriteria({}, []), const []);
+  SearchBlocInit() : super(null, const SearchCriteria("", []), const []);
 }
 
 class SearchBlocLoading extends SearchBlocState {
diff --git a/app/lib/entity/search.dart b/app/lib/entity/search.dart
index 3910c02b..8ed66967 100644
--- a/app/lib/entity/search.dart
+++ b/app/lib/entity/search.dart
@@ -1,33 +1,34 @@
 import 'package:nc_photos/account.dart';
-import 'package:nc_photos/ci_string.dart';
 import 'package:nc_photos/entity/file.dart';
+import 'package:nc_photos/entity/file_util.dart' as file_util;
 import 'package:nc_photos/entity/sqlite_table_extension.dart' as sql;
 import 'package:nc_photos/iterable_extension.dart';
 
 class SearchCriteria {
-  const SearchCriteria(this.keywords, this.filters);
+  const SearchCriteria(this.input, this.filters);
 
   SearchCriteria copyWith({
-    Set<CiString>? keywords,
+    String? input,
     List<SearchFilter>? filters,
   }) =>
       SearchCriteria(
-        keywords ?? Set.of(this.keywords),
+        input ?? this.input,
         filters ?? List.of(this.filters),
       );
 
   @override
   toString() => "$runtimeType {"
-      "keywords: ${keywords.toReadableString()}, "
+      "input: $input, "
       "filters: ${filters.toReadableString()}, "
       "}";
 
-  final Set<CiString> keywords;
+  final String input;
   final List<SearchFilter> filters;
 }
 
 abstract class SearchFilter {
   void apply(sql.FilesQueryBuilder query);
+  bool isSatisfy(File file);
 }
 
 enum SearchFileType {
@@ -55,6 +56,17 @@ class SearchFileTypeFilter implements SearchFilter {
     query.byMimePattern(type.toSqlPattern());
   }
 
+  @override
+  isSatisfy(File file) {
+    switch (type) {
+      case SearchFileType.image:
+        return file_util.isSupportedImageFormat(file);
+
+      case SearchFileType.video:
+        return file_util.isSupportedVideoFormat(file);
+    }
+  }
+
   @override
   toString() => "$runtimeType {"
       "type: ${type.name}, "
@@ -71,6 +83,9 @@ class SearchFavoriteFilter implements SearchFilter {
     query.byFavorite(value);
   }
 
+  @override
+  isSatisfy(File file) => (file.isFavorite ?? false) == value;
+
   @override
   toString() => "$runtimeType {"
       "value: $value, "
diff --git a/app/lib/entity/search/data_source.dart b/app/lib/entity/search/data_source.dart
index 04ddf001..8967bb5b 100644
--- a/app/lib/entity/search/data_source.dart
+++ b/app/lib/entity/search/data_source.dart
@@ -1,53 +1,186 @@
 import 'package:drift/drift.dart' as sql;
 import 'package:logging/logging.dart';
 import 'package:nc_photos/account.dart';
+import 'package:nc_photos/ci_string.dart';
+import 'package:nc_photos/di_container.dart';
+import 'package:nc_photos/entity/file.dart';
 import 'package:nc_photos/entity/search.dart';
-import 'package:nc_photos/entity/sqlite_table.dart' as sql;
+import 'package:nc_photos/entity/search_util.dart' as search_util;
+import 'package:nc_photos/entity/sqlite_table_converter.dart';
 import 'package:nc_photos/entity/sqlite_table_extension.dart' as sql;
+import 'package:nc_photos/iterable_extension.dart';
 import 'package:nc_photos/object_extension.dart';
+import 'package:nc_photos/use_case/list_tagged_file.dart';
+import 'package:nc_photos/use_case/populate_person.dart';
 
 class SearchSqliteDbDataSource implements SearchDataSource {
-  SearchSqliteDbDataSource(this.sqliteDb);
+  SearchSqliteDbDataSource(this._c);
 
   @override
   list(Account account, SearchCriteria criteria) async {
     _log.info("[list] $criteria");
-    final keywords =
-        criteria.keywords.map((e) => e.toCaseInsensitiveString()).toList();
-    final dbFiles = await sqliteDb.use((db) async {
-      final query = db.queryFiles().run((q) {
-        q.setQueryMode(sql.FilesQueryMode.completeFile);
-        q.setAppAccount(account);
-        for (final r in account.roots) {
-          if (r.isNotEmpty) {
-            q.byOrRelativePathPattern("$r/%");
-          }
-        }
-        for (final f in criteria.filters) {
-          f.apply(q);
-        }
-        return q.build();
-      });
-      // limit to supported formats only
-      query.where(db.files.contentType.like("image/%") |
-          db.files.contentType.like("video/%"));
-      for (final k in keywords) {
-        query.where(db.accountFiles.relativePath.like("%$k%"));
-      }
-      return await query
-          .map((r) => sql.CompleteFile(
-                r.readTable(db.files),
-                r.readTable(db.accountFiles),
-                r.readTableOrNull(db.images),
-                r.readTableOrNull(db.imageLocations),
-                r.readTableOrNull(db.trashes),
-              ))
-          .get();
-    });
-    return await dbFiles.convertToAppFile(account);
+    final stopwatch = Stopwatch()..start();
+    try {
+      final keywords = search_util
+          .cleanUpSymbols(criteria.input)
+          .split(" ")
+          .where((s) => s.isNotEmpty)
+          .map((s) => s.toCi().toCaseInsensitiveString())
+          .toSet();
+      final futures = await Future.wait([
+        _listByPath(account, criteria, keywords),
+        _listByLocation(account, criteria),
+        _listByTag(account, criteria),
+        _listByPerson(account, criteria),
+      ]);
+      return futures.flatten().distinctIf(
+            (a, b) => a.compareServerIdentity(b),
+            (a) => a.identityHashCode,
+          );
+    } finally {
+      _log.info("[list] Elapsed time: ${stopwatch.elapsedMilliseconds}ms");
+    }
   }
 
-  final sql.SqliteDb sqliteDb;
+  Future<List<File>> _listByPath(
+      Account account, SearchCriteria criteria, Set<String> keywords) async {
+    try {
+      final dbFiles = await _c.sqliteDb.use((db) async {
+        final query = db.queryFiles().run((q) {
+          q.setQueryMode(sql.FilesQueryMode.completeFile);
+          q.setAppAccount(account);
+          for (final r in account.roots) {
+            if (r.isNotEmpty) {
+              q.byOrRelativePathPattern("$r/%");
+            }
+          }
+          for (final f in criteria.filters) {
+            f.apply(q);
+          }
+          return q.build();
+        });
+        // limit to supported formats only
+        query.where(db.files.contentType.like("image/%") |
+            db.files.contentType.like("video/%"));
+        for (final k in keywords) {
+          query.where(db.accountFiles.relativePath.like("%$k%"));
+        }
+        return await query
+            .map((r) => sql.CompleteFile(
+                  r.readTable(db.files),
+                  r.readTable(db.accountFiles),
+                  r.readTableOrNull(db.images),
+                  r.readTableOrNull(db.imageLocations),
+                  r.readTableOrNull(db.trashes),
+                ))
+            .get();
+      });
+      return await dbFiles.convertToAppFile(account);
+    } catch (e, stackTrace) {
+      _log.severe("[_listByPath] Failed while _listByPath", e, stackTrace);
+      return [];
+    }
+  }
+
+  Future<List<File>> _listByLocation(
+      Account account, SearchCriteria criteria) async {
+    // location search requires exact match, for example, searching "united"
+    // will NOT return results from US, UK, UAE, etc. Searching by the alpha2
+    // code is supported
+    try {
+      final dbFiles = await _c.sqliteDb.use((db) async {
+        final query = db.queryFiles().run((q) {
+          q.setQueryMode(sql.FilesQueryMode.completeFile);
+          q.setAppAccount(account);
+          for (final r in account.roots) {
+            if (r.isNotEmpty) {
+              q.byOrRelativePathPattern("$r/%");
+            }
+          }
+          for (final f in criteria.filters) {
+            f.apply(q);
+          }
+          q.byLocation(criteria.input);
+          return q.build();
+        });
+        // limit to supported formats only
+        query.where(db.files.contentType.like("image/%") |
+            db.files.contentType.like("video/%"));
+        return await query
+            .map((r) => sql.CompleteFile(
+                  r.readTable(db.files),
+                  r.readTable(db.accountFiles),
+                  r.readTableOrNull(db.images),
+                  r.readTableOrNull(db.imageLocations),
+                  r.readTableOrNull(db.trashes),
+                ))
+            .get();
+      });
+      return await dbFiles.convertToAppFile(account);
+    } catch (e, stackTrace) {
+      _log.severe(
+          "[_listByLocation] Failed while _listByLocation", e, stackTrace);
+      return [];
+    }
+  }
+
+  Future<List<File>> _listByTag(
+      Account account, SearchCriteria criteria) async {
+    // tag search requires exact match, for example, searching "super" will NOT
+    // return results from "super tag"
+    try {
+      final dbTag = await _c.sqliteDb.use((db) async {
+        return await db.tagByDisplayName(
+          appAccount: account,
+          displayName: criteria.input,
+        );
+      });
+      if (dbTag == null) {
+        return [];
+      }
+      final tag = SqliteTagConverter.fromSql(dbTag);
+      _log.info("[_listByTag] Found tag: ${tag.displayName}");
+      final files = await ListTaggedFile(_c)(account, [tag]);
+      return files
+          .where((f) => criteria.filters.every((c) => c.isSatisfy(f)))
+          .toList();
+    } catch (e, stackTrace) {
+      _log.severe("[_listByTag] Failed while _listByTag", e, stackTrace);
+      return [];
+    }
+  }
+
+  Future<List<File>> _listByPerson(
+      Account account, SearchCriteria criteria) async {
+    // person search requires exact match of any parts, for example, searching
+    // "Ada" will return results from "Ada Crook" but NOT "Adabelle"
+    try {
+      final dbPersons = await _c.sqliteDb.use((db) async {
+        return await db.personsByName(
+          appAccount: account,
+          name: criteria.input,
+        );
+      });
+      if (dbPersons.isEmpty) {
+        return [];
+      }
+      final persons = await dbPersons.convertToAppPerson();
+      _log.info(
+          "[_listByPerson] Found people: ${persons.map((p) => p.name).toReadableString()}");
+      final futures = await Future.wait(
+          persons.map((p) async => await _c.faceRepo.list(account, p)));
+      final faces = futures.flatten().toList();
+      final files = await PopulatePerson(_c)(account, faces);
+      return files
+          .where((f) => criteria.filters.every((c) => c.isSatisfy(f)))
+          .toList();
+    } catch (e, stackTrace) {
+      _log.severe("[_listByPerson] Failed while _listByPerson", e, stackTrace);
+      return [];
+    }
+  }
+
+  final DiContainer _c;
 
   static final _log =
       Logger("entity.search.data_source.SearchSqliteDbDataSource");
diff --git a/app/lib/entity/sqlite_table_extension.dart b/app/lib/entity/sqlite_table_extension.dart
index 120047bb..118f3521 100644
--- a/app/lib/entity/sqlite_table_extension.dart
+++ b/app/lib/entity/sqlite_table_extension.dart
@@ -1,6 +1,7 @@
 import 'package:drift/drift.dart';
 import 'package:logging/logging.dart';
 import 'package:nc_photos/account.dart' as app;
+import 'package:nc_photos/ci_string.dart';
 import 'package:nc_photos/entity/file.dart' as app;
 import 'package:nc_photos/entity/sqlite_table.dart';
 import 'package:nc_photos/entity/sqlite_table_converter.dart';
@@ -8,6 +9,7 @@ import 'package:nc_photos/entity/sqlite_table_isolate.dart';
 import 'package:nc_photos/future_extension.dart';
 import 'package:nc_photos/iterable_extension.dart';
 import 'package:nc_photos/k.dart' as k;
+import 'package:nc_photos/location_util.dart' as location_util;
 import 'package:nc_photos/mobile/platform.dart'
     if (dart.library.html) 'package:nc_photos/web/platform.dart' as platform;
 import 'package:nc_photos/object_extension.dart';
@@ -430,6 +432,30 @@ extension SqliteDbExtension on SqliteDb {
     }
   }
 
+  Future<Tag?> tagByDisplayName({
+    Account? sqlAccount,
+    app.Account? appAccount,
+    required String displayName,
+  }) {
+    assert((sqlAccount != null) != (appAccount != null));
+    if (sqlAccount != null) {
+      final query = select(tags)
+        ..where((t) => t.server.equals(sqlAccount.server))
+        ..where((t) => t.displayName.like(displayName))
+        ..limit(1);
+      return query.getSingleOrNull();
+    } else {
+      final query = select(tags).join([
+        innerJoin(servers, servers.rowId.equalsExp(tags.server),
+            useColumns: false),
+      ])
+        ..where(servers.address.equals(appAccount!.url))
+        ..where(tags.displayName.like(displayName))
+        ..limit(1);
+      return query.map((r) => r.readTable(tags)).getSingleOrNull();
+    }
+  }
+
   Future<List<Person>> allPersons({
     Account? sqlAccount,
     app.Account? appAccount,
@@ -453,6 +479,35 @@ extension SqliteDbExtension on SqliteDb {
     }
   }
 
+  Future<List<Person>> personsByName({
+    Account? sqlAccount,
+    app.Account? appAccount,
+    required String name,
+  }) {
+    assert((sqlAccount != null) != (appAccount != null));
+    if (sqlAccount != null) {
+      final query = select(persons)
+        ..where((t) => t.account.equals(sqlAccount.rowId))
+        ..where((t) =>
+            t.name.like(name) |
+            t.name.like("% $name") |
+            t.name.like("$name %"));
+      return query.get();
+    } else {
+      final query = select(persons).join([
+        innerJoin(accounts, accounts.rowId.equalsExp(persons.account),
+            useColumns: false),
+        innerJoin(servers, servers.rowId.equalsExp(accounts.server),
+            useColumns: false),
+      ])
+        ..where(servers.address.equals(appAccount!.url))
+        ..where(persons.name.like(name) |
+            persons.name.like("% $name") |
+            persons.name.like("$name %"));
+      return query.map((r) => r.readTable(persons)).get();
+    }
+  }
+
   Future<void> truncate() async {
     await delete(servers).go();
     // technically deleting Servers table is enough to clear the followings, but
@@ -555,6 +610,10 @@ class FilesQueryBuilder {
     _byServerRowId = serverRowId;
   }
 
+  void byLocation(String location) {
+    _byLocation = location;
+  }
+
   JoinedSelectStatement build() {
     if (_sqlAccount == null && _appAccount == null && !_isAccountless) {
       throw StateError("Invalid query: missing account");
@@ -638,6 +697,20 @@ class FilesQueryBuilder {
     if (_byServerRowId != null) {
       query.where(db.files.server.equals(_byServerRowId));
     }
+    if (_byLocation != null) {
+      var clause = db.imageLocations.name.like(_byLocation!) |
+          db.imageLocations.admin1.like(_byLocation!) |
+          db.imageLocations.admin2.like(_byLocation!);
+      final countryCode = location_util.nameToAlpha2Code(_byLocation!.toCi());
+      if (countryCode != null) {
+        clause = clause | db.imageLocations.countryCode.equals(countryCode);
+      } else if (_byLocation!.length == 2 &&
+          location_util.alpha2CodeToName(_byLocation!.toUpperCase()) != null) {
+        clause = clause |
+            db.imageLocations.countryCode.equals(_byLocation!.toUpperCase());
+      }
+      query.where(clause);
+    }
     return query;
   }
 
@@ -659,6 +732,7 @@ class FilesQueryBuilder {
   bool? _byFavorite;
   int? _byDirRowId;
   int? _byServerRowId;
+  String? _byLocation;
 }
 
 app.File _covertSqliteDbFile(Map map) {
diff --git a/app/lib/location_util.dart b/app/lib/location_util.dart
index 93688133..d1f52f39 100644
--- a/app/lib/location_util.dart
+++ b/app/lib/location_util.dart
@@ -1,7 +1,25 @@
-/// Convert a ISO 3166-1 alpha-2 code into country name
-String? alpha2CodeToName(String cc) => _ccMap[cc];
+import 'package:nc_photos/ci_string.dart';
 
-const _ccMap = {
+/// Convert a ISO 3166-1 alpha-2 code into country name
+String? alpha2CodeToName(String cc) => _ccMap.byCc(cc);
+
+/// Convert a country name into ISO 3166-1 alpha-2 code
+String? nameToAlpha2Code(CiString name) => _ccMap.byCiName(name);
+
+class _CcMap {
+  _CcMap(this._ccMap)
+      : _nameMap = _ccMap.map(
+            (cc, name) => MapEntry(name.toCi().toCaseInsensitiveString(), cc));
+
+  String? byCc(String cc) => _ccMap[cc];
+  String? byCiName(CiString name) =>
+      _nameMap[name.toCaseInsensitiveString()];
+
+  final Map<String, String> _ccMap;
+  final Map<String, String> _nameMap;
+}
+
+final _ccMap = _CcMap({
   "AD": "Andorra",
   "AE": "United Arab Emirates",
   "AF": "Afghanistan",
@@ -251,4 +269,4 @@ const _ccMap = {
   "ZA": "South Africa",
   "ZM": "Zambia",
   "ZW": "Zimbabwe",
-};
+});
diff --git a/app/lib/widget/home_search.dart b/app/lib/widget/home_search.dart
index ad15cef5..f4ba5afa 100644
--- a/app/lib/widget/home_search.dart
+++ b/app/lib/widget/home_search.dart
@@ -8,13 +8,11 @@ import 'package:logging/logging.dart';
 import 'package:nc_photos/account.dart';
 import 'package:nc_photos/app_localizations.dart';
 import 'package:nc_photos/bloc/search.dart';
-import 'package:nc_photos/ci_string.dart';
 import 'package:nc_photos/compute_queue.dart';
 import 'package:nc_photos/di_container.dart';
 import 'package:nc_photos/download_handler.dart';
 import 'package:nc_photos/entity/file.dart';
 import 'package:nc_photos/entity/search.dart';
-import 'package:nc_photos/entity/search_util.dart' as search_util;
 import 'package:nc_photos/exception_util.dart' as exception_util;
 import 'package:nc_photos/k.dart' as k;
 import 'package:nc_photos/language_util.dart' as language_util;
@@ -536,14 +534,7 @@ class _HomeSearchState extends State<HomeSearch>
   }
 
   void _reqQuery(String input, List<SearchFilter> filters) {
-    final keywords = search_util
-        .cleanUpSymbols(input)
-        .split(" ")
-        .where((s) => s.isNotEmpty)
-        .map((s) => s.toCi())
-        .toSet();
-    _bloc.add(
-        SearchBlocQuery(widget.account, SearchCriteria(keywords, filters)));
+    _bloc.add(SearchBlocQuery(widget.account, SearchCriteria(input, filters)));
   }
 
   void _reqResetLanding() {