Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trang, lanh tranh
hanh trinh » canh tranh, hanh chinh
cua dung » cua dang, qua dung, cua rung
cua dong » chua dong, cua cong, cua dang
cong ban » cong bang, cong san, cong tan
ban khan » ban than, ban nhan, ban chan
khan cap » khan ap, than cap, khoan cam

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