If A Papillon Puppy Growls When You Try To Take Something Away, How Do You Train Them To Stop?

Whatever you do don’t jump away and show fear. It will encourage more aggressive behavior.
Calmy keep your hand above the toy to block your puppy from it.
If your dog is play growling it will immediately back away from the toy.
If your dog seems to get more intense it is challenging you. (you may get bit but it’s a puppy now so it won’t hurt. If you get bit stay absolutely still and act like the biting doesn’t hurt you at all) Use a loud noise like a horn or someone behind you clapping assertively to distract your dog and snap the nasty thought from it’s mind. Calmly take the toy and when your dog is calm give it back.
Just practice constantly taking your dogs toys and food to get him used to it.