Searches in RoboHelp output

I am trying to figure out how to do AND searches from the RH7 output in the Search Tab. For example, if I enter the whole term "RoboHelp 7" in the search box, all occurrences of "RoboHelp", "7" and "RoboHelp 7" are highlighted. what do I have to do to just get "RoboHelp 7" hits.