Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » hanh chinh
khong cong » thong cong, khong cang, chong cong
doi chieu » doc hieu, doi chi, ho chieu
cua khong » hua khong, cua phuong, cua thuong
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cau » toan cao, toan ban, toan tap

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