While your puppy isn't biting you just because she has nothing else to chew on, having plenty of other things to chew on will help her redirect her desire to chew on you. Make sure you have plenty of good chew toys, balls, and tug toys for her to sink her teeth into. Puppies seek out diverse materials, textures, and sizes, so make sure you provide a variety for your Chow.
Food is the great motivator when it comes to training puppies, and even if your Chow Chow really wants to nibble on you, she will find restraint when presented with actual yummy food. Make sure you have plenty of good treats available, but be careful that you balance nutrients for your puppy's rapidly growing body.