You should add a "Not Equal To" Search so you can eliminate certain records from a search. <>
Allow you Search to eliminate records by a "Not Equal To Value or Phrase". For example. If I search for all Records that have a value in the Category Field = to "Employee" but then want to eliminate from that list all Records that have a Group = "1099" , I have no way of doing that currently.
Dan Benoit commented
I don't know how many records you are needing to handle at once, but here's something to maybe try: Narrow your search down as much as possible, of course filtering out all but those in the "Employee" category, 1099's and all.
Add all searched candidates to a static view. Within that view, filter out all but the 1099's, and remove them all (ALWAYS BE CAUTIOUS when deleting records from a static view, as it looks VERY similar to deleting a candidate's records... THAT is something that needs to be addressed... But, I digress)
Once you've removed the 1099's from your static view you are left with only the good stuff. Hope you're able to use that!