Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh toan » tinh toan, thanh toan, trinh han
doi chieu » doc hieu, doi chi, ho chieu
trinh van » trinh han, trinh quan, dinh van
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan tap » toan 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 - canh ((trinh van) or (trinh toan)) dung ((cong dan) OR (cong tan)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - canh ((trinh van) OR (trinh toan)) dung ((cong dan) OR (cong tan)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - canh ((trinh van) or (trinh toan)) dung ((cong dan) OR (cong tan)) toan tap".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - canh ((trinh van) or (trinh toan)) dung ((cong dan) OR (cong tan)) toan tap*.