Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
canh trinh » canh tranh, hanh trinh, canh tinh
trinh manh » trinh minh, trinh anh, trinh hanh
manh hung » anh huong
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
cong tan » cong tac, cong thanh, cong ty
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 - canh trinh manh hung ((cong san) or (cong tan)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - canh trinh manh hung ((cong san) OR (cong tan)) phan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - canh trinh manh hung ((cong san) or (cong tan)) phan cau*.