diff --git a/src/admin/communication/comments.vue b/src/admin/communication/comments.vue
index 26558ee..ead2230 100644
--- a/src/admin/communication/comments.vue
+++ b/src/admin/communication/comments.vue
@@ -98,7 +98,7 @@ async function listComments() {
 
 onMounted(listComments)
 watch(() => [query.page, query.limit], listComments)
-watchDebounced(() => [query.problem], listComments, {
+watchDebounced(() => query.problem, listComments, {
   debounce: 500,
   maxWait: 1000,
 })
diff --git a/src/admin/problem/components/AddButton.vue b/src/admin/problem/components/AddButton.vue
index 3b2f41f..7f3ca5f 100644
--- a/src/admin/problem/components/AddButton.vue
+++ b/src/admin/problem/components/AddButton.vue
@@ -35,7 +35,7 @@ async function addProblem() {
 <template>
   <n-popconfirm :show-icon="false" @positive-click="addProblem">
     <template #trigger>
-      <n-button secondary size="small" type="primary">+</n-button>
+      <n-button secondary size="small" type="primary">添加</n-button>
     </template>
     <n-flex vertical>
       <span>请输入在这场比赛中的显示编号</span>
diff --git a/src/admin/problem/components/Modal.vue b/src/admin/problem/components/Modal.vue
index 5cb98fd..8d7116e 100644
--- a/src/admin/problem/components/Modal.vue
+++ b/src/admin/problem/components/Modal.vue
@@ -58,7 +58,8 @@ watch(
     if (value) getList()
   },
 )
-watch(query, getList, { deep: true })
+watch(() => [query.limit, query.page], getList)
+watchDebounced(() => query.keyword, getList, { debounce: 500, maxWait: 1000 })
 </script>
 <template>
   <n-modal
@@ -72,6 +73,7 @@ watch(query, getList, { deep: true })
     <n-input
       class="search"
       v-model:value="query.keyword"
+      clearable
       placeholder="搜索标题或编号"
     />
     <n-data-table striped :columns="columns" :data="problems" />
diff --git a/src/oj/contest/list.vue b/src/oj/contest/list.vue
index a5e1772..b0b44f1 100644
--- a/src/oj/contest/list.vue
+++ b/src/oj/contest/list.vue
@@ -115,7 +115,7 @@ watch(
   },
 )
 watchDebounced(
-  () => [query.keyword],
+  () => query.keyword,
   () => {
     query.page = 1
     routerPush()
diff --git a/src/oj/problem/list.vue b/src/oj/problem/list.vue
index 47591b2..1b73f27 100644
--- a/src/oj/problem/list.vue
+++ b/src/oj/problem/list.vue
@@ -118,7 +118,7 @@ watch(
   },
 )
 watchDebounced(
-  () => [query.keyword],
+  () => query.keyword,
   () => {
     query.page = 1
     routerPush()