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
dung cong » dung trong
toan phan » thanh phan, toan ban, hoa phan
cua dung » cua dang, cua dong, qua dung
tan phan » than phan, van phan, tai phan

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