Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
tang cho » trang cho, sang cho, hang cho
chat ban » nhat ban, chat ran, cua ban
hieu van » hieu va, thien van, lieu va
van chat » cao chat
sach lo » sach dao, sach doi, sach hoi
xa hang » va hang, xa hung, ban hang
xa bang » va bang, ba bang, ra bang
cua tre » cua te, cuu tre, cua triet
tan ho » toan ho, tang ho, tan hoi
lo van » le van, vo van, so van
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: thu sach lo van ((tan ho) OR (tang cho)). hieu van chat ban ((xa hang) OR (xa bang)) di cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach lo van ((tan ho) or (tang cho)). hieu van chat ban ((xa hang) OR (xa bang)) di cua tre~".
• Adding a wildcard symbol may retrieve word variants: thu sach lo van ((tan ho) or (tang cho)). hieu van chat ban ((xa hang) OR (xa bang)) di cua tre*.