Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chung cong » nhung cong, chong cong, phung cong
trinh tin » trinh kinh, trinh toan, trinh han
thanh cap » hanh cap, than cap, thanh ca
thanh lap » thanh san, phan lap, thanh hai
ho chieu » theo chieu, hoc thieu, doi chieu
trinh tu » trinh ky, trinh do
cong san » cong tac

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh ((trinh tin) OR (trinh tu)) chung cong san ((thanh cap) OR (thanh lap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - thanh ((trinh tin) or (trinh tu)) chung cong san ((thanh cap) OR (thanh lap))~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh ((trinh tin) or (trinh tu)) chung cong san ((thanh cap) OR (thanh lap))*.