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
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
cua nhung » va nhung
dang toan » dan toan, dung toan, dang thanh
dang tran » dang thanh, quang tran, hoang tran

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 nhung cong ((dang toan) or (dang tran)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - hanh tranh cua nhung cong ((dang toan) OR (dang tran)) cao.
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - hanh tranh cua nhung cong ((dang toan) or (dang tran)) cao*.