search correction with NOT

I have an alert setup. It is like

"ABC-* NOT ("ABC-1" OR "ABC-2")

"ABC-1", "ABC-2" being stuff I have taken care of.

My result is like:

ABC- ABC-3 ABC-4 ABC-5

I want to remove that "ABC-".

The problem is, if I add it as NOT to the search, I see no results. Like in

"ABC-* NOT ("ABC-" OR "ABC-1" OR "ABC-2")

I get 0 results. How to do that correctly?