Perhaps you should try some spelling variations:
thanh tri » thanh tra, thanh tai, chinh tri
nang ma » tang ma, sang ma, nang cao
hieu ve » hieu va, hieu van
cuc ban » cua ban, cac ban, cuu ban
cac van » cac dan
cua tre » cua te, cuu tre, cua triet
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang ma hoi. hieu ve cac ((cuc ban) or (cac van)) thanh tri cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang ma hoi. hieu ve cac ((cuc ban) OR (cac van)) thanh tri cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang ma hoi. hieu ve cac ((cuc ban) or (cac van)) thanh tri cua tre*.