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
dung cong » dung trong
cong dan » cong san, cong tan, huong dan
than ban » thanh ban, toan ban, than man
than ma » than man, than va, khan ma

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)) su dung cong dan ((than ban) or (than ma))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - ((hanh trang) OR (canh tranh)) su dung cong dan ((than ban) OR (than ma)).
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - ((hanh trang) or (canh tranh)) su dung cong dan ((than ban) or (than ma))*.