Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh tranh » canh tranh, hanh trinh, hanh trang
chinh chau » chinh cho, chinh phu, minh chau
tranh cua » doanh cua, manh cua
cong cong » cong dong, trong cong, dung cong
chinh cau » chinh ca, chinh can, chinh tai
cong san » cong tac

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