A kung fu movie in which the fighter usually grabs his opponents and rolls with them on the ground something like 20 or more times every time he fights someone movie was made in 70s or 80s

The same fighter also was walking in desert with girl (possibly a princess)

I'm not sure but I think that the movie has the word "tumbles" in it somewhere

More about the movie:

The scene was in ancient china. The "rolling" part of the fight usually happens in slow motion.