Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
cac tuong » cac truong, cac phuong, cac chuong
nguoi dao » nguoi tay
cac dung » cach dung, cac duong, tac dung
than cau » toan cau, than cap, thanh chau
phan cau » phan dau, phan cac, phan tu

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 - canh tranh ((cac dung) or (cac tuong)) nguoi dao ((than cau) OR (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - canh tranh ((cac dung) OR (cac tuong)) nguoi dao ((than cau) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - canh tranh ((cac dung) or (cac tuong)) nguoi dao ((than cau) OR (phan cau))".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - canh tranh ((cac dung) or (cac tuong)) nguoi dao ((than cau) OR (phan cau))*.