difficult to say with small puppies. It's sometimes better to see, when they're older.
generally you can expect that the dog is a mix of atleast 2 breeds, most of the time more, if you don't buy from a breeder which is member of one of the major breeding clubs.
It could be that there is some Spitz or Nordic breed or a herder in it though. that's possible. but I think it could be mixed with something with a broader snout, like a pitbull(-mix) for example.