Perhaps you should try some spelling variations:
cham tuc » nham thuc, pham thuc, tham thuc
hieu van » hieu va, thien van, lieu va
sach ly » sach y, sach ty, sach hay
bang va » hang va, ban va, trang va
xa bang » va bang, ba bang, ra bang
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va
hang xa » hoang xa, hang va, hang ca
sach lo » sach dao, sach doi, sach hoi
va cua » va chua, via cua, ca 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: su ((sach ly) OR (sach lo)) hang xa hoi. ((hieu ve) OR (hieu van)) cham tuc xa bang va cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ly) or (sach lo)) hang xa hoi. ((hieu ve) OR (hieu van)) cham tuc xa bang va cua tre~".
• Adding a wildcard symbol may retrieve word variants: su ((sach ly) or (sach lo)) hang xa hoi. ((hieu ve) OR (hieu van)) cham tuc xa bang va cua tre*.