Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
hanh tang » hanh trang, anh tang, hanh mang
luong vat » luong va, luong van, luong tai
vat thanh » dat thanh, gat thanh, tat thanh
cua dang » cua ban
thanh cu » thanh chu, thanh tu, thanh ca

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (nhieu tang)) - hanh tang ((cua dang) or (cua cong)) luong vat thanh cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (nhieu tang)) - hanh tang ((cua dang) OR (cua cong)) luong vat thanh cu.
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (nhieu tang)) - hanh tang ((cua dang) or (cua cong)) luong vat thanh cu*.