Perhaps you should try some spelling variations:
thanh lam » thanh lap, hanh lam, thanh nam
ban thanh » ban hanh, ban hang
cham duc » pham duc, cham soc, pham duy
tu sach » thu sach, te sach, tu cach
lam cua » nam cua, lam chat
duc ban » duc tan, duc van, dua ban
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
lai hoi » dai hoi, lai hoa, lai roi
mai hoi » mai khoi, dai hoi, mai doi
ty tang » tay tang, ty xang, ty hang
su sach » so sach, vu sach
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (su sach)) ty tang ((mai hoi) or (lai hoi)). hieu vu cham duc ban thanh lam cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ty tang ((mai hoi) OR (lai hoi)). hieu vu cham duc ban thanh lam cua tre*.