Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
tang van » dang van, hoang van, trong van
va thanh » gia thanh, va tinh, le thanh
so sach » so sanh, bo sach, co sach
van hoi » van hoa, van hoc, van hoe
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
y tang » ky tang, 6 tang, 7 tang
ve coc » ve cuoc, ve cac, ve co
di cua » dai cua, doi cua, de cua

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: so sach y tang van hoi. hieu ve coc luc ((va thanh) OR (ban thanh)) di cua tre~.
• Adding a wildcard symbol may retrieve word variants: so sach y tang van hoi. hieu ve coc luc ((va thanh) or (ban thanh)) di cua tre*.