Search on site including bbpress topics titles and content?

I use the latest WordPress version with bbPress forum plugin installed.

bbPress adds a search form to its forums-index page, and this duplicates search form already inserted in the navigation menu of my site. How can i remove search form from shortcode “bbpress-forum-index” to fix this?

But the worst thing that keywords from forum topic titles and contents are not included to search – users are not able to find anything on forum. I was looking for plugin to fix this issue, but found nothing. How to fix this?

I am sorry for possible duplicates. Thank you!