Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
hoa hoi » khoa hoi, hoa hoc, hoa doi
hieu va » lieu va, hieu qua
cao tuc » dao tuc, cao duc, cao suc
cua tre » cua te, cuu tre, cua triet
su cac » tu cac, su cao, su can
va cao » va cac, va co, va dao
tuc va » thuc va, truc va, tuc xa
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ky nang ((xa hoi) or (hoa hoi)). hieu va cao tuc va thanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky nang ((xa hoi) OR (hoa hoi)). hieu va cao tuc va thanh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: su cac ky nang ((xa hoi) or (hoa hoi)). hieu va cao tuc va thanh vi cua tre*.