BuddyPress.org

Some things are here visit the link and read the posts. The other guy updated the tutorial on his site. I think it’s not so easy because also forum search on BP org here when you click on the topic second third and so forth search result pages it gets you error. Pity.
https://buddypress.org/community/groups/how-to-and-troubleshooting/forum/topic/buddypress-orgs-unified-search-how-can-i-get-it/