Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
chinh chau » chinh cau, chinh cho, chinh phu
dan chinh » dang chinh, lan chinh, van chinh
cua dung » cua dang, qua dung, cua rung
cua dong » chua dong, cua cong, cua dang
cong dan » cong san, cong tan, huong dan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chinh sach) or (chieu sang)) - canh tranh ((cua dung) OR (cua dong)) cong dan chinh chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chinh sach) OR (chieu sang)) - canh tranh ((cua dung) OR (cua dong)) cong dan chinh chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chinh sach) or (chieu sang)) - canh tranh ((cua dung) OR (cua dong)) cong dan chinh chau".
• Adding a wildcard symbol may retrieve word variants: ho ((chinh sach) or (chieu sang)) - canh tranh ((cua dung) OR (cua dong)) cong dan chinh chau*.