I took a few stabs but never got anything to work in advanced, especially since I couldn't get a basic portion to work int he standard find.
FIND SERIES where COUNTRY CODE is or not "WHATEVER". The title edit field for a series shows publisher country as "United States [image of flag]" but I can't make it work in search. Tried US, USA, United State, MERICA, etc.
The below generic using "is not" and "list only my issues in stock" returns all my titles, if I say *is* for exact match I get nothing. Looking for some working examples to make this work, so that I can then use advanced query to do similar fancier things.