Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doc hieu, doi chi, ho chieu
tranh xay » trinh xay, trong xay, manh xay
thanh ban » thanh san, thanh van, thanh bac
than ban » toan ban, than man, nhuan ban

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