Display bbpress topics under forums or sub forums

Hi,

I would like to know how to add topics below sub forum and show only subforum topics.

I used code below but it show all topics including other forums topics.

<pre><code>function recent_bbpress_topics() {

if ( bbp_has_topics( array( ‘author’ => 0, ‘show_stickies’ => false, ‘order’ => ‘DESC’, ‘post_parent’ => ‘any’, ‘posts_per_page’ => 15 ) ) )

bbp_get_template_part( ‘bbpress/loop’, ‘topics’ );

}

add_action(‘bbp_template_after_forums_loop’,’recent_bbpress_topics’);</code></pre>

ex: http://prntscr.com/kbbfoz

Kindly advice!

thank you

A