I'm trying to search forums using two keywords. I want to find posts with BOTH keywords in the post but it only finds one or the other keyword. For instance, searching for "rudder" and "rib" it gives me some posts with just "rudder", some posts with just "rib", and some with both. I want posts only with "rudder" AND "rib". I've tried using quotes ("") around the words, using "and" and using "&". Any suggestions?