Perhaps you should try some spelling variations:
thu tang » thu trang, thu thang, thu hang
hieu van » hieu va, thien van, lieu va
lam duoc » nam duoc, luat duoc, lam thuoc
va thanh » gia thanh, ban thanh, va tinh
tang ky » dang ky, trong ky, tang khu
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

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu tang ky nang x ho. hieu van lam duoc ((va hanh) or (va thanh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu tang 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 tang ky nang x ho. hieu van lam duoc ((va hanh) or (va thanh)) vai cua tre*.