Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
va thanh » gia thanh, ban thanh, va tinh
mai khoi » mai khoa, tai khoa, cac khoi
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
lai hoi » dai hoi, lai hoa, lai roi
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
tu cao » cu cao, tu cac, vu cao
tuc va » thuc va, truc va, tuc xa
ve cam » ve cham, ve cac, va cam

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