Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » hanh chinh
cong thanh » dong thanh, cong trinh, cong tan
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
cua dung » cua dang, cua dong, qua dung
san cau » van cau, ban cau, can cau

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 tranh) or (hanh trinh)) cua dung cong thanh san cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - ((canh tranh) OR (hanh trinh)) cua dung cong thanh san cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((canh tranh) or (hanh trinh)) cua dung cong thanh san cau*.