show only indexable vyb yoast pages in wordpress search

function custom_search_query( $query ) {
    if ( $query->is_search ) {
        $query->set('post_type', array('post', 'page', 'custom_post_type_1', 'custom_post_type_2'));
    }
    return $query;
}
add_filter('pre_get_posts','custom_search_query');