How many movies have Mona Fong Yat-Wah and Yue Tau-Wan collaborated on?

They have worked on 10 movies together! Their first movie together was Dirty Ho (1979) while their highest rated movie together was Three Stooges Go Undercover (1984). They have not worked together since Girl with the Diamond Slipper (1985). They are most known for their comedy films together.