Perhaps you should try some spelling variations:
cua tre » cua te, cua triet, dua tren
va tinh » may tinh
lai hoi » lai hoa, lai roi, mai hoi
cuu tre » cau tren, cau treo
dai hoi » dai hoc, dai hai, dai moi
hieu va » lieu va, hieu qua
tinh vi » trinh vi, tinh voi, tinh va
cam tuc » cam xuc, cam tu, nam thuc
tu cam » tu cham, tu cac, tu nam
tuc va » thuc va, truc va, tuc xa
cam ky » cao ky, cac ky
va cam » va cham, va cac, va cao

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 cam ky nang ((lai hoi) OR (dai hoi)). hieu va cam tuc va tinh vi ((cuu tre) OR (cua tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cam ky nang ((lai hoi) or (dai hoi)). hieu va cam tuc va tinh vi ((cuu tre) OR (cua tre))~".
• Adding a wildcard symbol may retrieve word variants: tu cam ky nang ((lai hoi) or (dai hoi)). hieu va cam tuc va tinh vi ((cuu tre) OR (cua tre))*.