What does it mean to "negative" a search value?
The example I always use is if you're interested in dolphins, but not in the Miama Dolphins football team, you would do a search on Google like this:
This returns all pages with
It's a powerful technique particularly when used with FogBugz's search axes:
... gives you all open cases but removes the ones that are assigned to you.
You can also add negative searches to a filter. This would allow you to ignore all cases in the Undecided milestone, for instance, but adding