Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
doanh van » doan van, doanh va, doanh ban
chua dong » ha dong, huy dong, hoa dong
cua dong » cua cong, cua dang, cua nong
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cac » nhan cach, phan dau, phan lap

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

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