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
ngang toan » nganh toan, dang toan, quang toan
dang tran » dang thanh, quang tran, hoang tran
cua dung » cua dang, qua dung, cua rung
cua dong » chua dong, cua cong, cua dang

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