There is little more annoying than chasing round after your dog when he won't come back.
Train your dog, from an early age, to come back when called.
Ensure your fencing is of adequate security.
Ensure your dog wears a tag with a contact number on it.
Try blowing a whistle before feeding, playing or giving your dog love and affection, this will then act as a prompt, encouraging them to come back to you in future.
Again, the causes of a dog running off can vary significantly from one dog to another. So for advice relevant to your situation, please call.
For more advice please call 01676 542404