Perhaps you should try some spelling variations:
thanh phan » thanh pho, thanh san, thanh toan
thanh lai » thanh hai, thanh lap, thanh loi
cham duc » pham duc, cham soc, pham duy
cao hoc » co hoc, cho hoc, chat hoc
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
duc ban » duc tan, duc van, dua ban
cua tre » cua te, cuu tre, cua triet
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang cao hoc. hieu ve cham duc ban ((thanh lai) OR (thanh phan)) cua tre~.
• Adding a wildcard symbol may retrieve word variants: te sac ky nang cao hoc. hieu ve cham duc ban ((thanh lai) or (thanh phan)) cua tre*.