Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
tuc van » thuc van, truc van, tuc va
cam tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu va, hieu van
tu cach » tu cac
tu nang » tru nang, tu nong, tu nano
su cac » tu cac, su cao, su can
vai va » mai va, dai va, hai va
ve cam » ve cham, ve cac, va cam
x hoi » xa hoi, o hoi, x ho
vi va » vi van, vu va, bi va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (su cac)) tu nang x hoi. hieu ve cam tuc van hanh ((vi va) OR (vai va)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su cac)) tu nang x hoi. hieu ve cam tuc van hanh ((vi va) OR (vai va)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (su cac)) tu nang x hoi. hieu ve cam tuc van hanh ((vi va) OR (vai va)) triet".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (su cac)) tu nang x hoi. hieu ve cam tuc van hanh ((vi va) OR (vai va)) triet*.