Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
ly quang » le quang, vu quang
va thanh » gia thanh, va tinh, le thanh
cam tuc » cam xuc, cam tu, nam thuc
van cua » vang cua, ban cua, dan cua
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ((ly hang) OR (ly quang)) x hoi. hieu ve cam tuc ((va thanh) or (ban thanh)) van cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ly hang) OR (ly quang)) x hoi. hieu ve cam tuc ((va thanh) OR (ban thanh)) van cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((ly hang) OR (ly quang)) x hoi. hieu ve cam tuc ((va thanh) or (ban thanh)) van cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ((ly hang) OR (ly quang)) x hoi. hieu ve cam tuc ((va thanh) or (ban thanh)) van cua tre*.