Perhaps you should try some spelling variations:
thuat sac » thuat sach, thuat san, thuat mach
thuat tac » thuat tach, thuat tao, thuat tai
van hanh » van thanh, ban hanh, van anh
dua tren » dung tren
nang xa » nang x, lang xa, nang ma
cam luc » cam xuc, cau luc
luc van » luoc van, luu van, duc van
va cam » va cham, va cac, va cao
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuat sac) OR (thuat tac)) ky nang xa hoi. lieu va cam luc van hanh vi ((dua tren) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat sac) OR (thuat tac)) ky nang xa hoi. lieu va cam luc van hanh vi ((dua tren) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thuat sac) OR (thuat tac)) ky nang xa hoi. lieu va cam luc van hanh vi ((dua tren) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: ((thuat sac) OR (thuat tac)) ky nang xa hoi. lieu va cam luc van hanh vi ((dua tren) or (cua te))*.