Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
cong danh » cuong danh, cong thanh, cong khanh
cua bang » chua bang, cua ban, cua dang
cong dan » cong san, cong tan, huong dan
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: doi chieu xanh - ((hanh tranh) OR (hanh trinh)) cua bang ((cong danh) or (cong dan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((hanh tranh) OR (hanh trinh)) cua bang ((cong danh) OR (cong dan)) toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((hanh tranh) OR (hanh trinh)) cua bang ((cong danh) or (cong dan)) toan cao*".