Boolean Search Help

I am creating a default query to base a scope on and I need some help.

As part of the query, I have about 8 or 9 specific machine names I want to exclude, and several others that have similar, but not exact name.

So when I get to this grouping in the query

AND ("Computer"."Device Name" NOT LIKE "Specificmachine1"

OR "Computer"."Device Name" NOT LIKE "Specificmachine2"

OR "Computer"."Device Name" NOT LIKE "Specificmachine3"

OR "Computer"."Device Name" NOT LIKE "Specificmachine4"

OR "Computer"."Device Name" NOT LIKE "ABDR")

The first 4 in the example are specific names of computer, the last on  is PART of a name that appears in several computers.  But when I run the query, that last line is ignored and I see computers with ABDR in the results.

What I want for that like is any computer with ADBR anywhere in the device name.

Me and Boolean searches only cooperate so far and then I go nuts.

Thanks