Hi, yes you can get her to retrieve.
I have a bedlington bitch which I use as a gun dog.
It has been a fairly slow progress but she is now very useful, she soon lost interest in dummies to the point where I was going to give up, but having shot a jay one day I tried her with that and she never looked back. She now retrieves all small game undamaged and will sit steady to shot. I avoid letting her pick wounded game as the terrier instinct may take over. The size of her mouth dictates that a pigeon or hen pheasant is her limit for a clean retrieve larger game is dragged back in a rather undign