Include Custom Post Types in Search Results

// Include Custom Post Types in Search Results

// functions.php
// title ans archive search
function filter_search($query) {
    if ($query->is_search) {
	$query->set('post_type', array('post', 'movies')); // include here your all custom post type
    };
    return $query;
};
add_filter('pre_get_posts', 'filter_search');