Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh di » thanh doi, thanh de, thanh do
tu cach » tu cac
te sach » toc sach
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

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: ((tu cach) OR (te sach)) ky nang x hoi. hieu ve cam duc ban thanh di cua tre~.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (te sach)) ky nang x hoi. hieu ve cam duc ban thanh di cua tre*.