Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
cong thanh » dong thanh, cong trinh, cong tan
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
cong tac » cong ty
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: theo chieu xanh - thanh ((trung cua) OR (trung cap)) nhung ((cong thanh) or (cong tac)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - thanh ((trung cua) OR (trung cap)) nhung ((cong thanh) OR (cong tac)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - thanh ((trung cua) OR (trung cap)) nhung ((cong thanh) or (cong tac)) toan tap".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh ((trung cua) OR (trung cap)) nhung ((cong thanh) or (cong tac)) toan tap*.