Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hanh vai » hanh vi, hanh va, hanh tai
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
su sac » su sach, su cac, su xac
tam tu » nam tu, cam tu, dam tu
sac ky » cac ky, sai ky
me hoi » le hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ky nang ((me hoi) or (ma hoa)). hieu va ((tam tu) or (nam thu)) va hanh vai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang ((me hoi) OR (ma hoa)). hieu va ((tam tu) OR (nam thu)) va hanh vai cua viet.
• Adding a wildcard symbol may retrieve word variants: su sac ky nang ((me hoi) or (ma hoa)). hieu va ((tam tu) or (nam thu)) va hanh vai cua viet*.