I checked out Google sets again recently. It seems to have improved incredibly (at least for some queries) compared to about a year ago.

Unfortunately I haven't been able to find any comprehensive up-to-date resources about it (in particular about which types of queries work well and which don't.
eg upon entering:

-octopussy,
-never say never and
-from russia with love

it spits out the rest of the James bond titles. But that 's probably one of the easiest. However, it also performs pretty well on queries that seem more difficult