Perhaps you should try some spelling variations:
thien van » thi van
tru nang » tra nang, tri nang, truc nano
hieu van » hieu va, lieu va, hieu ve
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
cach tru » cach tu, cac tru, cach thuc
te cach » ve cach, te sach, tu cach
cao duc » dao duc, cao suc, giao duc
vai cua » dai cua, hai cua, lai cua
cac duc » cac du, cac dac, cac nuoc
nang xa » nang x, lang xa, nang ma
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cach tru nang xa hoi. ((hieu van) OR (thien van)) ((cac duc) or (cao duc)) van hanh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cach tru nang xa hoi. ((hieu van) OR (thien van)) ((cac duc) OR (cao duc)) van hanh vai cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cach tru nang xa hoi. ((hieu van) OR (thien van)) ((cac duc) or (cao duc)) van hanh vai cua tu*".