Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh toan » tinh toan, thanh toan, trinh han
trinh van » trinh han, trinh quan, dinh van
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
phan dau » phan tu, hang dau

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - canh ((trinh van) OR (trinh toan)) nhung ((cong tan) or (cong san)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - canh ((trinh van) OR (trinh toan)) nhung ((cong tan) OR (cong san)) phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - canh ((trinh van) OR (trinh toan)) nhung ((cong tan) or (cong san)) phan dau".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - canh ((trinh van) OR (trinh toan)) nhung ((cong tan) or (cong san)) phan dau*.