Hi!
I think you need a different keyword logic. I suggest checking chapter 14 and 14.1 in the documentation first.
Basically the default search word logic is “OR”, to maximize result output. Since you have a fairly big set of results, you can select a different one to get more precise ones. I suggest using the “AND” logic. You can change it on the General Options -> Behavior panel: http://i.imgur.com/z7JCPRb.png
