Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
doi chieu » doc hieu, doi chi, ho chieu
tranh cua » doanh cua, manh cua
cua khong » hua khong, cua phuong, cua thuong
cang dan » cong dan, canh dan, dang dan
tang dan » tang van, tung dan, tang luan
toan cau » toan ban, toan tap, toan tai
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: doi chieu xanh - hanh tranh cua khong ((cang dan) OR (tang dan)) ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - hanh tranh cua khong ((cang dan) OR (tang dan)) ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - hanh tranh cua khong ((cang dan) OR (tang dan)) ((toan cau) or (toan cao))".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh tranh cua khong ((cang dan) OR (tang dan)) ((toan cau) or (toan cao))*.