How many movies have Huang Mao-Shan and Yun Chung-Yueh collaborated on?

They have worked on 3 movies together! Their first movie together was Sacrifice to Desolate Spirits (1980) while their highest rated movie together was The Country of Beauties (1981). They have not worked together since The Country of Beauties (1981). They are most known for their action films together.