我使用编写了一个搜索查询WP_Query, 我在哪里搜索2meta_query 值如下：

$keyword = $_GET[\'tewa_search\'];
$institute_name = get_user_meta($user_ID, \'inistitute_name\', TRUE);

$paged = (get_query_var(\'page\')) ? get_query_var(\'page\') : 1;
$args = [
    \'post_type\' => \'messages\',
    \'meta_query\' => [
        \'relation\' => \'OR\',
        [
            \'key\' => \'inistitute_name\',
            \'value\' => [ $institute_name ],
            \'compare\' => \'IN\',
        ],
        [
            //course values stored as ID\'s like 200, 300 in database
            \'key\' => \'course\',
            //Single course ID if user types \'java\' then I can get only single course ID
            \'value\' => $keyword,
            \'compare\' => \'LIKE\',
        ],
    ],
    \'posts_per_page\' => -1,
    \'paged\' => $paged,
    \'post_status\' => $status,
];
$the_query = new WP_Query($args);

在存储meta_key \'course\' 如果用户选择多个课程，则相应的课程ID将存储在数据库中，假设用户选择2个课程，则存储2个课程ID，并用逗号（100200）分隔。搜索时，如果用户输入课程名称，我将获得相应的课程ID，然后使用存储的课程ID进行搜索，因为课程ID用逗号分隔（100、200、300）。

但是我的查询没有按预期工作，有人能告诉我代码中有什么错误吗？

  $args = array(
    \'post_type\' => \'messages\',
    \'meta_query\' => array (
    \'relation\' => \'AND\',
     array(
            \'key\' => \'inistitute_name\',
            \'value\' => array ($institute_name),
            \'compare\' => \'IN\'
          ),
    array(
       \'key\' => \'course\', //course values stored as ID\'s like 200, 300 in database
       \'value\' => $keyword, //Single course ID if user types \'java\' then I can get only single course ID 
       \'compare\' => \'LIKE\'
      )
    ),
   \'posts_per_page\' => -1,
   \'paged\' => $paged,
   \'post_status\' => $status,
);
$the_query = new WP_Query($args);