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 trinh, hanh trang
cua phuong » cuu phuong, cuc phuong, luan phuong
cong thanh » dong thanh, cong trinh, cong tan
cua khong » hua khong, cua thuong, cua cong
cong dan » cong san, cong tan, huong dan
toan cao » toan ban, toan tap

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