Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
canh trinh » canh tranh, hanh trinh, canh tinh
cong thanh » dong thanh, cong trinh, cong tan
thanh phan » thanh pho, thanh san, thanh toan
quan nhan » xuan nhan, quan nha, luan nhan
van thanh » ban thanh, van tuan
ho chieu » theo chieu, hoc thieu, mot chieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - canh trinh ((quan nhan) or (van thanh)) cong thanh phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - canh trinh ((quan nhan) OR (van thanh)) cong thanh phan tu.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - canh trinh ((quan nhan) or (van thanh)) cong thanh phan tu*.