Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh cac » hanh cac, thanh bac, thanh ca
cham duc » pham duc, cham soc, pham duy
sach ky » sac ky, sach y, sach kem
sach ty » sach y, sach tu, sach thu
tang xa » trang xa, tang ma, lang xa
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
duc ban » duc tan, duc van, dua ban
cac chu » cac thu, cac che, cac khu
chu tre » cho tre, chu tri, cuu tre

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach ky) or (sach ty)) tang xa hoi. hieu vu cham duc ban thanh cac chu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sach ty)) tang xa hoi. hieu vu cham duc ban thanh cac chu tre.
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) or (sach ty)) tang xa hoi. hieu vu cham duc ban thanh cac chu tre*.