Include custom taxonomies in search results?

Question

WordPress

Good day. There is a site on wp, there is a custom post-type with its own taxonomies.
When searching for the name of the taxonomy, it does not find anything.
In the functions.php file

function myprefix_search_posts_per_page($query) {
    if ( $query->is_search ) {
        $query->set( 'posts_per_page', '7' );
        $query->set( 'post_type',array('dmw-portf','page') );
    }
    return $query;
}
add_filter( 'pre_get_posts','myprefix_search_posts_per_page' );

Here I am filtering the search output for a custom post type.
How can I include all custom posttype taxonomies in the search result?