Perhaps you should try some spelling variations:
khoi tang » kho tang, khoi nang, thoi trang
cac khoi » cac thoi, cac khoan, cach thoi
tang xa » trang xa, tang ma, lang xa
hieu va » lieu va, hieu qua
te cac » tu cac, ve cac, te cao
tuc va » thuc va, truc va, duc va
va cam » va cham, va cac, va cao
ve ve » va ve, ke ve, ve ke

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 khoi tang xa hoi. hieu va cam ((tuc va) OR (tuc xa)) hanh ((ve ve) or (de ve)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cac khoi tang xa hoi. hieu va cam ((tuc va) OR (tuc xa)) hanh ((ve ve) OR (de ve)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cac khoi tang xa hoi. hieu va cam ((tuc va) OR (tuc xa)) hanh ((ve ve) or (de ve)) triet".
• Adding a wildcard symbol may retrieve word variants: te cac khoi tang xa hoi. hieu va cam ((tuc va) OR (tuc xa)) hanh ((ve ve) or (de ve)) triet*.