diff --git a/backend/src/main/java/com/github/binpastes/paste/api/PasteController.java b/backend/src/main/java/com/github/binpastes/paste/api/PasteController.java
index 69c37a1..c0a5c39 100644
--- a/backend/src/main/java/com/github/binpastes/paste/api/PasteController.java
+++ b/backend/src/main/java/com/github/binpastes/paste/api/PasteController.java
@@ -87,14 +87,15 @@ public Mono<ListView> findPastes() {
     public Mono<SearchView> searchPastes(
             @RequestParam("term")
             @NotBlank
-            @Pattern(regexp = "[\\pL\\pN\\p{P}\\s]{3,25}")
+            @Pattern(regexp = "[\\p{L}\\p{N}\\p{P}\\s]{3,50}")
             final String term,
             final ServerHttpResponse response
     ) {
-        response.getHeaders().setCacheControl(CacheControl.maxAge(60, TimeUnit.SECONDS));
+        var decodedTerm = URLDecoder.decode(term, Charset.defaultCharset());
+        response.getHeaders().setCacheControl(CacheControl.maxAge(1, TimeUnit.MINUTES));
         return pasteService
-                .findByFullText(URLDecoder.decode(term, Charset.defaultCharset()))
-                .map(paste -> SearchItemView.of(paste, term))
+                .findByFullText(decodedTerm)
+                .map(paste -> SearchItemView.of(paste, decodedTerm))
                 .collectList()
                 .map(SearchView::of);
     }
@@ -123,7 +124,7 @@ public void deletePaste(@PathVariable("pasteId") String pasteId, ServerHttpReque
     @ExceptionHandler({ConstraintViolationException.class, WebExchangeBindException.class})
     @ResponseStatus(HttpStatus.BAD_REQUEST)
     private void handleValidationException(RuntimeException e) {
-        log.info("Received invalid request: {}", e.getClass().getSimpleName());
+        log.info("Received invalid request [{}]: {}", e.getClass().getSimpleName(), e.getMessage());
     }
 
     private static String remoteAddress(ServerHttpRequest request) {
diff --git a/backend/src/test/java/com/github/binpastes/paste/api/PasteControllerTest.java b/backend/src/test/java/com/github/binpastes/paste/api/PasteControllerTest.java
index 531ddcd..b39c4c1 100644
--- a/backend/src/test/java/com/github/binpastes/paste/api/PasteControllerTest.java
+++ b/backend/src/test/java/com/github/binpastes/paste/api/PasteControllerTest.java
@@ -58,24 +58,12 @@ void listPastes() {
                 .uri("/api/v1/paste")
                 .exchange()
                 .expectStatus().isOk()
+                .expectHeader().cacheControl(CacheControl.empty())
                 .expectBody().jsonPath("pastes", emptyList());
     }
 
     @Test
-    @DisplayName("GET /search - set cache header")
-    void searchPastes() {
-        doReturn(Flux.empty()).when(pasteService).findByFullText(anyString());
-
-        webClient.get()
-                .uri("/api/v1/paste/search?term={term}", "foobar")
-                .exchange()
-                .expectStatus().isOk()
-                .expectHeader().cacheControl(CacheControl.maxAge(1, TimeUnit.MINUTES))
-                .expectBody().jsonPath("pastes", emptyList());
-    }
-
-    @Test
-    @DisplayName("GET /search - decode term parameter")
+    @DisplayName("GET /search - term parameter and cache header")
     void searchPastesDecodesParameter() {
         doReturn(Flux.empty()).when(pasteService).findByFullText(anyString());
 
@@ -121,7 +109,12 @@ private static Stream<Arguments> invalidPayloads() {
                             "content": "validContent",
                         }
                 """))),
-                arguments(named("title too long", Mono.just("{\"content\": \"validContent\", \"title\": " + "X".repeat(256 + 1) + "\"}"))),
+                arguments(named("title too long", Mono.just("""
+                        {
+                            "title": "%s",
+                            "content": "validContent",
+                        }
+                """.formatted("X".repeat(256 + 1))))),
                 arguments(named("content blank", Mono.just("""
                         {
                             "content": "            ",
@@ -132,7 +125,11 @@ private static Stream<Arguments> invalidPayloads() {
                             "content": "1234",
                         }
                 """))),
-                arguments(named("content too long", Mono.just("{\"content\": \"" + "X".repeat(4096 + 1) + "\"}")))
+                arguments(named("content too long", Mono.just("""
+                        {
+                            "content": "%s",
+                        }
+                """.formatted("X".repeat(4096 + 1)))))
         );
     }
 }