Perhaps you should try some spelling variations:
chat luc » chat xuc, chat lua, nhan luc
van hanh » van thanh, ban hanh, van anh
lua tre » cua tre, luy tre, dua tren
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
luc van » luoc van, luu van, duc van
tang ma » mang may, tang van
va chat » van chat, va phat, cao chat
vi lua » vi luu
te cac » tu cac, ve cac, te cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te cac) or (te bao)) ky ((nang xa) or (tang ma)) hoi. hieu va chat luc van hanh vi lua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (te bao)) ky ((nang xa) OR (tang ma)) hoi. hieu va chat luc van hanh vi lua tre.
• Adding a wildcard symbol may retrieve word variants: ((te cac) or (te bao)) ky ((nang xa) or (tang ma)) hoi. hieu va chat luc van hanh vi lua tre*.