How many movies have Chiang Hsing-Lung and Richard Yuen Tak collaborated on?

They have worked on 11 movies together! Their first movie together was Coward Bastard (1980) while their highest rated movie together was The 8 Diagram Pole Fighter (1984). They have not worked together since I Will Finally Knock You Down, Dad! (1984). They are most known for their action films together.