Perhaps you should try some spelling variations:
thanh dau » thanh dat, thanh dam, thanh mau
va thanh » gia thanh, ban thanh, va tinh
so sach » so sanh, bo sach, co sach
xang xa » mang xa, ang xa, dang xay
dau cua » dai cua, day cua, cau cua
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
cac luc » cau luc, cac nuoc, cac cuoc
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty ((xang xa) or (lang xa)) hoi. hieu ve ((cac luc) or (coc luc)) va thanh dau cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ty ((xang xa) OR (lang xa)) hoi. hieu ve ((cac luc) OR (coc luc)) va thanh dau cua tu.
• Adding a wildcard symbol may retrieve word variants: so sach ty ((xang xa) or (lang xa)) hoi. hieu ve ((cac luc) or (coc luc)) va thanh dau cua tu*.