Perhaps you should try some spelling variations:
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
cao hoi » cau hoi, co hoi, cao hoc
qua cac » cua cac
cua tre » cuu tre, cua triet, dua tren
tu san » thu san, tu can, vu san
tu ban » thu ban, te ban
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: ((tu san) or (tu ban)) ky nang cao hoi. hieu qua cac nuoc va thanh vi ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu san) OR (tu ban)) ky nang cao hoi. hieu qua cac nuoc va thanh vi ((cua tre) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: ((tu san) or (tu ban)) ky nang cao hoi. hieu qua cac nuoc va thanh vi ((cua tre) or (cua te))*.