Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
trinh han » trinh quan
ho chieu » theo chieu, hoc thieu, doi chieu
han long » han tong, hai long, ha long
cong tan » cong tac, cong san, cong thanh
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu

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 - hanh trinh han long ((cong tan) or (cong ty)) ((than cau) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh trinh han long ((cong tan) OR (cong ty)) ((than cau) OR (phan cau)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh trinh han long ((cong tan) or (cong ty)) ((than cau) or (phan cau))*.