My team uses priority level TODOs like this: high=TODO:1 medium=TODO:2, low=TODO:3. The scanner is good at catching these, but there are also unclassified level TODOs just as 'TODO:'. I put this in one of the searches as well, but it duplicates all the results (TODO: shows items that are also in TODO:1, TODO:2, and TODO:3).

What I'd like to do is specify 'TODO:' to be searched last and catch everything that the other searches haven't already caught.