Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
van hanh » van thanh, ban hanh, van anh
hieu van » hieu va, thien van, lieu va
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 dac » cac dan, cac dai, cac bac
cach tu » cach thuc
dong xa » dong xay, duong xa, dong ha
nong xa » song xa, nong va, cong xay
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 tu ((nong xa) OR (dong xa)) hoi. hieu van ((cac dac) or (cao duc)) van hanh vai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cach tu ((nong xa) OR (dong xa)) hoi. hieu van ((cac dac) OR (cao duc)) van hanh vai cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te cach tu ((nong xa) OR (dong xa)) hoi. hieu van ((cac dac) or (cao duc)) van hanh vai cua tu*".