Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
ky tang » ky nang, kho tang, ky trong
ky dang » ky nang, ky danh
van tai » von tai, van tuan
tai son » thai son, tai san, tai so
te cac » tu cac, ve cac, te cao
son va » song va, son la, lon va
vi cua » vai cua, di cua
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 cac ((ky tang) or (ky dang)) xa hoi. hieu van tai son va thanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cac ((ky tang) OR (ky dang)) xa hoi. hieu van tai son va thanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: te cac ((ky tang) or (ky dang)) xa hoi. hieu van tai son va thanh vi cua tu*.