Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
cua viet » ca viet, hoa viet, cua vat
lang xa » lang ha, dang xay, lang van
van cam » van nam, van lam, van dam
van cau » van dau, van hau, van chat
tuc van » thuc van, truc van, tuc va
so anh » so sanh, so danh, do anh
y lang » o lang, _ lang, tay lang
anh y » hanh y, anh d, anh _

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

• Performing a fuzzy search may retrieve terms with similar spellings: so anh y lang xa hoi. hieu ((van cam) or (van cau)) tuc van hanh dai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so anh y lang xa hoi. hieu ((van cam) OR (van cau)) tuc van hanh dai cua viet*.