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