Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
tranh cua » doanh cua, manh cua
cong cong » cong dong, trong cong, dung cong
cong vang » cong lang, cong quang, cong ngang
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: hoc ((chieu xanh) OR (chieu tinh)) - canh tranh cua cong cong vang ((phan cau) or (hang va))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu tinh)) - canh tranh cua cong cong vang ((phan cau) OR (hang va)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) OR (chieu tinh)) - canh tranh cua cong cong vang ((phan cau) or (hang va))".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) OR (chieu tinh)) - canh tranh cua cong cong vang ((phan cau) or (hang va))*.