Improving the search feature

The search feature is missing one big feature. Search by topic.

What I mean is when searching say hugelkulture I might get 400+ results (posts) but the first page is only two topics. If I could search and have it only show each topic once it would make it more efficient to find several conversations instead if seeing the same one over and over.

Look at this link for how it currently is.
https://permies.com/forums/jforum?module=search&action=search&forum_id=11&search_keywords=hugelkulture&match_type=all&search_in=ALL&forum=11&sort_by=time&sort_dir=DESC&search_date=ALL&member_number=&member_first_name=&member_last_name=&member_match_type=memberPosted

Here is an example of a different forum that has this feature

By topic
http://ecomodder.com/forum/search.php?searchid=1701495

By post
http://ecomodder.com/forum/search.php?searchid=1701509

This would be a great improvement. I try not to start threads on topics that have already been covered but it's hard to be meticulous looking for old relevant threads because each post is in the search results so it takes a lot of digging.