I want to see my ad for "car rental" with all major US cities in Yahoo .. so if they search for "Chicago car rental services" my ad should come up as I set up it with advanced search. But it is not showing .

Any help from you guys ? Do I need to target all target keywords with it in one ad group ?

Shall I need to add keywords for all cities ? That is too tough thing I guess, also if I need to do this then what is the point of this advanced match type !

Thanks for your help ...