Well, due to the simplicity of the built-in forums, I include a Google Search bar on the upper right of the forums. That should allow you to do all the logical searches you would like.
I prefer to keep modification to the phpBB code (forum software that we do not develop) to a minimum, as it make supporting and updating it greatly more difficult than keeping it as close to "stock" as possible.
Well, due to the simplicity of the built-in forums, I include a Google Search bar on the upper right of the forums. That should allow you to do all the logical searches you would like.
I prefer to keep modification to the phpBB code (forum software that we do not develop) to a minimum, as it make supporting and updating it greatly more difficult than keeping it as close to "stock" as possible.