Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va hanh, dia danh
van lam » van nam
lam xuc » cam xuc, lam duoc
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
va dan » ca dan, va dao, va dau
ve cac » va cac, vien cac
te cac » tu cac, te cao, de cac

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) OR (ve cac)) ky tang xa hoi. hieu van lam xuc ((va danh) or (va dan)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (ve cac)) ky tang xa hoi. hieu van lam xuc ((va danh) OR (va dan)) vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) OR (ve cac)) ky tang xa hoi. hieu van lam xuc ((va danh) or (va dan)) vai cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te cac) OR (ve cac)) ky tang xa hoi. hieu van lam xuc ((va danh) or (va dan)) vai cua tre*.