Perhaps you should try some spelling variations:
thu sang » thu hang, thu san, thu bang
hieu van » hieu va, thien van, lieu va
lam duoc » nam duoc, luat duoc, lam thuoc
van hanh » van thanh, ban hanh, van anh
va thanh » gia thanh, ban thanh, va tinh
sang ky » sang kyo, dang ky, tang ky
van lam » van nam
va hanh » va danh, ban hanh, dao 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 sang ky nang x ho. hieu van lam duoc ((((va hanh) OR (van hanh))) or (va thanh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sang ky nang x ho. hieu van lam duoc ((((va hanh) OR (van hanh))) OR (va thanh)) vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sang ky nang x ho. hieu van lam duoc ((((va hanh) OR (van hanh))) or (va thanh)) vai cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sang ky nang x ho. hieu van lam duoc ((((va hanh) OR (van hanh))) or (va thanh)) vai cua tre*.