Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh van » thanh san, thanh toan, thanh phan
tu sach » thu sach, su sach, te sach
van cac » van cau, van bac, dan cac
van hac » van hoc, van ha, van hai
dac ban » cac ban, dac san, duc ban
van cua » vang cua, ban cua, dan cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang

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 sach ((y nang) OR (v nang)) x ho. hieu ((van cac) OR (van hac)) dac ban thanh van cua tre~.
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) or (v nang)) x ho. hieu ((van cac) or (van hac)) dac ban thanh van cua tre*.