How many movies have Chen Hung-Lieh and Hsu Tseng-Hung collaborated on?

They have worked on 6 movies together! Their first movie together was The Warlord and the Actress (1964) while their highest rated movie together was The Thundering Sword (1967). They have not worked together since One Armed Swordsman Against Nine Killers (1976). They are most known for their action films together.