Perhaps you should try some spelling variations:
nang ma » tang ma, sang ma, nang cao
hieu va » lieu va, hieu qua
van han » van hanh, van phan, van nhan
va phan » van phan, va phat, va phap
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
te cao » te bao
ma hoi » mai hoi, xa hoi, ma hoa
va cam » va cham, va cac, va cao
cam tu » cam thu, nam tu, dam tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cao ky nang ma hoi. hieu va cam tu ((van han) or (va phan)) tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cao ky nang ma hoi. hieu va cam tu ((van han) OR (va phan)) tai cua tre.
• Adding a wildcard symbol may retrieve word variants: te cao ky nang ma hoi. hieu va cam tu ((van han) or (va phan)) tai cua tre*.