Very easy to rectify , however takes time & patience
In youngs dogs you have to build a recall , if you look at it this way what is the dogs incentive to return
Start a short distance , either on a long line or off lead . Use small treats to reward . Basically calm the dog with a command , here or come , I use here cause you can stress the word and it's easier for the dog to hear it
When the dog recalls mark the behaviour with a reward & praise , this is positive reinforcement
Over time the dog associate the command & body language with reward .
I should say use you body arms etc to encourage the dog in , the last thing it will understand is the command .
Once it's coming back u can run backwards before rewarding this increasing distance
Only when the dog is solid recall can you start to introduce recall under distraction ie other people , traffic , animals etc
I compete with dogs and train them if you wondered