Perhaps you should try some spelling variations:
hieu viec » nhieu viec, sieu viet, hieu hien
ban tuoc » ban thuoc, ban duoc, ban tuong
hanh vai » hanh vi, hanh va, hanh tai
hieu ve » hieu va, hieu van
tuoc va » thuoc va, nuoc va, duoc va
va hanh » van hanh, va thanh, va danh
cua tre » cuu tre, cua triet, dua tren
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
cua te » cua tu

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 x ho. ((hieu viec) OR (hieu ve)) ban tuoc va hanh vai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky nang x ho. ((hieu viec) OR (hieu ve)) ban tuoc va hanh vai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ky nang x ho. ((hieu viec) OR (hieu ve)) ban tuoc va hanh vai ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: su sac ky nang x ho. ((hieu viec) OR (hieu ve)) ban tuoc va hanh vai ((cua tre) or (cua te))*.