Perhaps you should try some spelling variations:
chieu sang » chieu sach, hieu lang, nhieu tang
chieu xanh » chieu sach, chieu tinh, hieu manh
hanh doanh » hang doanh, chinh doanh, doanh doanh
doanh cua » doanh luan
cua bang » chua bang, cua ban, cua dang
cong dan » cong san, cong tan, cong dong
than tap » toan tap, han tap, phan tap

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 (chieu xanh)) - hanh doanh cua bang ((cong dan) OR (huong dan)) than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sang) OR (chieu xanh)) - hanh doanh cua bang ((cong dan) OR (huong dan)) than tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) or (chieu xanh)) - hanh doanh cua bang ((cong dan) OR (huong dan)) than tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) or (chieu xanh)) - hanh doanh cua bang ((cong dan) OR (huong dan)) than tap*.