Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
nam thuc » nam thuoc, am thuc, nam thu
tang van » dang van, hoang van, trong van
su sach » vu sach
va hanh » van hanh, va thanh, va danh
cam tuc » cam xuc, cam tu, dam thuc
hieu ve » hieu va, hieu van
van hoi » van hoa, van hoc, van hoe
ky tang » ky nang, ky dang, kho tang
so sach » so sanh, bo sach, co sach
vai cua » dai cua, hai cua, lai cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (so sach)) ky tang van hoi. hieu ve ((cam tuc) or (nam thuc)) va hanh vai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ky tang van hoi. hieu ve ((cam tuc) OR (nam thuc)) va hanh vai cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ky tang van hoi. hieu ve ((cam tuc) or (nam thuc)) va hanh vai cua vat".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ky tang van hoi. hieu ve ((cam tuc) or (nam thuc)) va hanh vai cua vat*.