Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
cau treo » cau theo, cau tren, cau triet
sach thu » sach thue, sach thieu, sach tham
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
dam tu » nam tu, cam tu, tam tu
tu ban » thu ban, te ban
ve dam » ven dam, ke dam, va dam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach thu ((nang xa) OR (lang xa)) hoi. hieu ve dam tu ban thanh hai ((cua triet) or (cau treo))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thu ((nang xa) OR (lang xa)) hoi. hieu ve dam tu ban thanh hai ((cua triet) OR (cau treo)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach thu ((nang xa) OR (lang xa)) hoi. hieu ve dam tu ban thanh hai ((cua triet) or (cau treo))".
• Adding a wildcard symbol may retrieve word variants: tu sach thu ((nang xa) OR (lang xa)) hoi. hieu ve dam tu ban thanh hai ((cua triet) or (cau treo))*.