When training complicated behaviors, break those behaviors into the smallest possible components and train each component separately. Then combine the behaviors to achieve the desired result. For instance to teach your dog to fetch the paper from the front lawn, you need all to teach all the following behaviors.
- Teach the dog to come when called
- Teach the dog to pickup an object when directed
- Teach the dog to go away from you on command
- Teach the dog to hold and carry an object without letting it go
All of these behaviors must be understood by your dog for him to fetch the paper from the lawn. Once the dog knows all these commands you can link them together one by one to get your dog to bring the paper from the front lawn.