Perhaps you should try some spelling variations:
sach thue » sach thieu, sach tham, cach thuc
van thanh » ban thanh, van tuan
sach thu » sach thieu, sach tham, cach thuc
thanh vi » hanh vi, thanh va, thanh ve
hieu van » hieu va, thien van, lieu va
cua tre » cua te, cuu tre, cua triet
van cho » van chi, san cho, van chat
lang xa » lang ha, dang xay, lang van
cho xu » chao xu, choi xu, cho xa
xu van » tu van, vu van, su van
cua tu » cua tuc, cua su, cua cu

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: te ((sach thu) OR (sach thue)) lang xa hoi. hieu van cho xu van thanh vi ((cua tre) OR (cua tu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach thu) OR (sach thue)) lang xa hoi. hieu van cho xu van thanh vi ((cua tre) or (cua tu))~".
• Adding a wildcard symbol may retrieve word variants: te ((sach thu) OR (sach thue)) lang xa hoi. hieu van cho xu van thanh vi ((cua tre) or (cua tu))*.