Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hanh vai » hanh vi, hanh va, hanh tai
gian cac » gian dan, gian cua
va hanh » van hanh, va thanh, va danh
tang ma » mang may, tang van
sang ma » nang ma, sang tao, mang may
vai cua » dai cua, hai cua, lai cua
tu sach » thu sach, su sach, te sach
xuc va » duc va, tuc va, luc va

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((sang ma) OR (tang ma)) hoi. hieu ((gian cac) OR (vien bach)) xuc va hanh vai cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y ((sang ma) OR (tang ma)) hoi. hieu ((gian cac) or (vien bach)) xuc va hanh vai cua viet~".
• Adding a wildcard symbol may retrieve word variants: tu sach y ((sang ma) OR (tang ma)) hoi. hieu ((gian cac) or (vien bach)) xuc va hanh vai cua viet*.