những thao tác 
activities [ những ] : (pluralizer); several, various; to be only; certain number of, some; as much as, as many as
[ thao ] : (1) raw silk, silk tassle; (2) sheath; (3) to hold tight, squeeze, clasp; (4) to exercise, drill
[ tác ] : (1) job, task, work; (2) to make, do
Most Common Compounds Set 1:
Most Common Compounds Set 2 :