Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh cua » doanh cua, manh cua
bang cong » dang cong, bang song, dung cong
hang cong » dang cong, hang nong, thanh cong
ho chieu » theo chieu, hoc thieu, doi chieu

You may be able to get more results by adjusting your search query.

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