Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trang » thanh trung, hanh trinh, minh trang
doi chieu » doc hieu, doi chi, ho chieu
cua thong » cua thuong, cua khong, cua tong
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: doi chieu xanh - ((hanh trang) or (canh tranh)) cua thong ((cong dan) OR (cong san)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((hanh trang) OR (canh tranh)) cua thong ((cong dan) OR (cong san)) phan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((hanh trang) or (canh tranh)) cua thong ((cong dan) OR (cong san)) phan cau*".