Look after the puppy, they always swallow small things. They are always hungry or have great curiosity. Puppies will easy get jammed fore example under chair legs. Don't give bone. Chewing bone made of ox hide is okay.
Washed carrots gives good chewing resistance, specially to small puppies.
Train the environment as early as the first day both inside and outside. Don't coddle with the puppies, give it stimulation and tempt it to do the correctly behaviour. Do always raise the puppy by commend the correctly behaviour. Pay no attention if the behaviour is wrong. Use the word no or shame only when it's really justified.