Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
va thanh » gia thanh, ban thanh, va tinh
va hanh » van hanh, va danh, ban hanh
cam tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu va, hieu van
so sanh » do sanh
cao hoc » co hoc, cho hoc, chat hoc
cao hoi » cau hoi, co hoi, tao hoi
sanh y » sinh y, anh y, hanh y
y nang » ky nang, ly nang, v nang
vi cua » vai cua, di cua
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh y nang ((cao hoi) OR (cao hoc)). hieu ve cam tuc ((va hanh) or (va thanh)) vi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh y nang ((cao hoi) OR (cao hoc)). hieu ve cam tuc ((va hanh) OR (va thanh)) vi cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh y nang ((cao hoi) OR (cao hoc)). hieu ve cam tuc ((va hanh) or (va thanh)) vi cua viet".
• Adding a wildcard symbol may retrieve word variants: so sanh y nang ((cao hoi) OR (cao hoc)). hieu ve cam tuc ((va hanh) or (va thanh)) vi cua viet*.