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
cua nhung » va nhung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
than cao » toan cao, thai cao, than cap

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 nhung ((cong dan) or (cong tan)) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((hanh tranh) OR (hanh trinh)) cua nhung ((cong dan) OR (cong tan)) than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - ((hanh tranh) OR (hanh trinh)) cua nhung ((cong dan) or (cong tan)) than cao".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((hanh tranh) OR (hanh trinh)) cua nhung ((cong dan) or (cong tan)) than cao*.