Find some deer trails coming from bedding areas(thick,thick cover)going to fields or other food sources.Set up 30-50 yards from a heavily used trail and plan on sitting there MOTIONLESS until you get a chance to make the shot.I'm convinced that if you sat on the same stump everyday for the whole season you would eventually have something come by--sit all day if possible.Obviously what you have been trying isn't working so why not try some different?