There aren't any. The physical aspect of boxing is meant to be simple body movements that generate the most effect for the least effort. Even the "most advanced" moves are nothing more than a couple simple ones strung together.
What is advanced is the thought process. How you set up moves by making the other guy do what you want him to do, when you want it done. The frequency with which this is accomplished is how good and great is defined. Chess vs checkers, right?