I know this sounds a little out of the ordinary and I' ve never done it but I' ve heard of other people doing it.. if you play the wind right minimize their entry exit points and push them to you by using scent.. This is what I mean.. Take a sweaty tshirt or hat and place it on a trail that you would like them NOT to use to divert them in a different direction and push the deer towards you.. if u strategically place several of these out to where the deer will be pushed towards you.. you might have a better chance of getting them a little closer.. worth a try I guess