In article . net, rw
writes
I see a lot of people having trouble getting their dogs to come. They
call, and call, and call, not realizing that the more they call while
the dog won't come, the more they reinforce the behavior.

Try Googling Dr Ian Dunbar - puppy training.

He emphasises that you must always make it worth the dog's while to come
to you with a treat, on copious praise.
--
Bill Grey
http://www.billboy.co.uk