Forum Moderators: open
Long search terms (i.e. "new york city banana stand")
NOT Advanced Match
NOT Content Match
Start by allocating 1K or so and monitor VERY closely.
Hone the campaign(s) until you are receiving max benefits .
Then and only then expand the campaign(s) with additional terms in the format and with ad text that mirror the successful test campaign(s).
Make sure your editorial isn't getting changed by Y before launch.
Monitor very closely ... ALWAYS.
Track all incoming clicks religiously and make noise to Y when you start to see fraud or ridiculously undesirable referring domains. (They have a LOT of them in the "Search Network").
Get lucky.