Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
trung cua » truong cua, trung tuan, trung cap
tong cong » trong cong, cong cong, dung cong
khoan cam » khoa cam, khoan va, phan cam
cong tac » cong ty
khan cap » khan ap, than cap, phan cac

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 tam)) tong cong tac ((khan cap) OR (khoan cam))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - thanh ((trung cua) OR (trung tam)) tong cong tac ((khan cap) OR (khoan cam)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - thanh ((trung cua) or (trung tam)) tong cong tac ((khan cap) OR (khoan cam))".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh ((trung cua) or (trung tam)) tong cong tac ((khan cap) OR (khoan cam))*.