Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
ban thanh » ban hanh, ban hang
cao tang » cao dang
cua tre » cua te, cuu tre, cua triet
duc ban » duc tan, duc van, dua ban
ve pham » vi pham, v pham, ve phan
hieu ve » hieu va, hieu van
ky tang » ky nang, ky dang, ky trong
ma hoi » mai hoi, xa hoi, ma hoa
su xac » pu xac, su cac

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

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