Perhaps you should try some spelling variations:
thanh tri » thanh tra, thanh tai, chinh tri
ban thanh » ban hanh, ban hang
kho tang » cao tang
cua tre » cua te, cuu tre, cua triet
mai hoi » mai khoi, dai hoi, lai hoi
ky tang » ky nang, ky dang, ky trong
duc ban » duc tan, duc van, dua ban
hieu vi » hieu voi, hieu va, hieu ve
su sac » su sach, su cac, su xac
ma hoi » xa hoi, ma hoa, me hoi
pham » phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sac ((ky tang) or (kho tang)) ((ma hoi) or (mai hoi)). hieu vi pham duc ban thanh tri cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ((ky tang) OR (kho tang)) ((ma hoi) OR (mai hoi)). hieu vi pham duc ban thanh tri cua tre.
• Adding a wildcard symbol may retrieve word variants: su sac ((ky tang) or (kho tang)) ((ma hoi) or (mai hoi)). hieu vi pham duc ban thanh tri cua tre*.