Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trung quan » truong quan, trung tuan, truong quang
trong quan » thong quan, tong quan, thong quang
doi chieu » doc hieu, doi chi, ho chieu
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
toan cau » 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 ((trung quan) or (trong quan)) dung ((cong tan) OR (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh ((trung quan) OR (trong quan)) dung ((cong tan) OR (cong tac)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - hanh ((trung quan) or (trong quan)) dung ((cong tan) OR (cong tac)) toan cau".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh ((trung quan) or (trong quan)) dung ((cong tan) OR (cong tac)) toan cau*.