Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
nhan dang » nhan dan, phan dang, tran dang
cua dong » chua dong, cua cong, cua nong
cua dang » cua cong, cua ban
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
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 - nhan dang ((cua dong) OR (cua dang)) ((cong tan) or (cong san)) than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - nhan dang ((cua dong) OR (cua dang)) ((cong tan) OR (cong san)) than cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - nhan dang ((cua dong) OR (cua dang)) ((cong tan) or (cong san)) than cao".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - nhan dang ((cua dong) OR (cua dang)) ((cong tan) or (cong san)) than cao*.