Perhaps you should try some spelling variations:
so sach » bo sach, co sach, hoc sach
so sanh » do sanh
xang xa » mang xa, ang xa, dang xay
lang xa » lang ha, dang xay, lang van
cay tuc » cay thuc, cay thuoc, chay tui
cua tre » cua te, cuu tre, cua triet
va cay » va cac, va cao, va cai
xa dao » ca dao, va dao, xa dai
dao vi » dao voi, dao ve, dao va
vi cua » vai cua, di cua

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) or (so sanh)) ty ((xang xa) or (lang xa)) hoi. lieu va cay tuc xa dao vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (so sanh)) ty ((xang xa) OR (lang xa)) hoi. lieu va cay tuc xa dao vi cua tre.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (so sanh)) ty ((xang xa) or (lang xa)) hoi. lieu va cay tuc xa dao vi cua tre*.