Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh trang » thanh trung, canh tranh, hanh trinh
trang cua » tranh cua, tang cua, trung cua
cua nhung » va nhung
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
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: theo ((chinh sach) or (chiet tach)) - hanh trang cua nhung ((cong dan) OR (cong san)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chinh sach) OR (chiet tach)) - hanh trang cua nhung ((cong dan) OR (cong san)) phan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chinh sach) or (chiet tach)) - hanh trang cua nhung ((cong dan) OR (cong san)) phan cau*".