diff --git a/modules/git/grep.go b/modules/git/grep.go
index 3703b13660..b5471b8f6c 100644
--- a/modules/git/grep.go
+++ b/modules/git/grep.go
@@ -36,6 +36,7 @@ const (
 	RegExpGrepMode
 )
 
+// llu:TrKeysSuffix search.
 var GrepSearchOptions = [3]string{"exact", "union", "regexp"}
 
 type GrepOptions struct {
diff --git a/modules/indexer/code/search.go b/modules/indexer/code/search.go
index 499b9117c4..66c9497dab 100644
--- a/modules/indexer/code/search.go
+++ b/modules/indexer/code/search.go
@@ -35,6 +35,7 @@ type SearchResultLanguages = internal.SearchResultLanguages
 
 type SearchOptions = internal.SearchOptions
 
+// llu:TrKeysSuffix search.
 var CodeSearchOptions = [2]string{"exact", "union"}
 
 type SearchMode = internal.CodeSearchMode
diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index dbb1c73c11..1cd5c5c640 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -167,6 +167,12 @@ user_kind = Search users…
 org_kind = Search orgs…
 team_kind = Search teams…
 code_kind = Search code…
+union = Union
+union_tooltip = Include results that match any of the whitespace separated keywords
+exact = Exact
+exact_tooltip = Include only results that match the exact search term
+regexp = RegExp
+regexp_tooltip = Interpret the search term as a regular expression
 code_search_unavailable = Code search is currently not available. Please contact the site administrator.
 package_kind = Search packages…
 project_kind = Search projects…
diff --git a/tests/integration/repo_search_test.go b/tests/integration/repo_search_test.go
index b145d9f427..874970fe56 100644
--- a/tests/integration/repo_search_test.go
+++ b/tests/integration/repo_search_test.go
@@ -1,11 +1,14 @@
 // Copyright 2017 The Gitea Authors. All rights reserved.
+// Copyright 2024-2025 The Forgejo Authors. All rights reserved.
 // SPDX-License-Identifier: MIT
 
 package integration
 
 import (
+	"fmt"
 	"net/http"
 	"net/url"
+	"strings"
 	"testing"
 
 	"forgejo.org/models/db"
@@ -13,6 +16,7 @@ import (
 	code_indexer "forgejo.org/modules/indexer/code"
 	"forgejo.org/modules/setting"
 	"forgejo.org/modules/test"
+	"forgejo.org/modules/translation"
 	"forgejo.org/routers"
 	"forgejo.org/tests"
 
@@ -112,11 +116,12 @@ func testSearch(t *testing.T, rawURL string, expected []string, indexer bool) {
 			return attr
 		})
 
+	expectedTypes := []string{"exact", "union", "regexp"}
 	if indexer {
-		assert.Equal(t, []string{"exact", "union"}, dropdownOptions)
-	} else {
-		assert.Equal(t, []string{"exact", "union", "regexp"}, dropdownOptions)
+		expectedTypes = []string{"exact", "union"}
 	}
+	assert.Equal(t, expectedTypes, dropdownOptions)
+	testDropdownOptions(t, container, expectedTypes, translation.NewLocale("en-US"))
 
 	filenames := resultFilenames(t, doc)
 	assert.ElementsMatch(t, expected, filenames)
@@ -124,6 +129,19 @@ func testSearch(t *testing.T, rawURL string, expected []string, indexer bool) {
 	testSearchPagination(t, rawURL, doc)
 }
 
+// testDropdownOptions verifies additional properties of dropdown options
+func testDropdownOptions(t *testing.T, container *goquery.Selection, options []string, locale translation.Locale) {
+	for _, option := range options {
+		label := container.Find(fmt.Sprintf("label.item:has(input[value='%s'])", option))
+		name := strings.TrimSpace(label.Text())
+		assert.Equal(t, name, locale.TrString(fmt.Sprintf("search.%s", option)))
+
+		tooltip, exists := label.Attr("data-tooltip-content")
+		assert.True(t, exists)
+		assert.Equal(t, tooltip, locale.TrString(fmt.Sprintf("search.%s_tooltip", option)))
+	}
+}
+
 // Tests that the variables set in the url persist for all the paginated links
 func testSearchPagination(t *testing.T, rawURL string, doc *HTMLDoc) {
 	original, err := queryFromStr(rawURL)