Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
lam duoc » nam duoc, luat duoc, lam thuoc
va thanh » gia thanh, ban thanh, va tinh
thu san » thuy san, thu ban, phu san
van lam » van nam
va hanh » van hanh, va danh, ban hanh
vai cua » dai cua, hai cua, lai cua
cua tre » cua te, cuu tre, cua triet
san ky » sang ky, van ky, dan ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu san ky nang x ho. hieu van lam duoc ((va hanh) OR (va thanh)) vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu san ky nang x ho. hieu van lam duoc ((va hanh) OR (va thanh)) vai cua tre".
• Adding a wildcard symbol may retrieve word variants: thu san ky nang x ho. hieu van lam duoc ((va hanh) OR (va thanh)) vai cua tre*.