Replace a standard search widget with Advance Search and you will be able to filter results by many parameters ( blog, category, post author ) plus you can customize almost everything.
Official page: http://forums.b2evolution.net/topic-15593
4 comments
Comment from: E. I. Visitor
Comment from: wireless Member
Hi,
this plugin could be better if you can search including commentaries
Comment from: kittenplay Member
How can you modify this to include Tags in the content searched and display results?
Thanks.
Comment from: poorboy Member
Not compatible with version 6
Randsco (http://www.randsco.com/) used to have a search hack that would highlight the terms you had searched for. that would be a nice addition to this.
Another one would be the ability to provide a title and the first X number of words of the article like Google does after you search.