Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
doanh xuan » doanh xuat, doan xuan, doanh quan
doanh luan » doanh nhan
trang cong » trong cong, tran cong, trang vuong
cong ban » cong bang, cong san, cong tan
ban than » ban thanh, van thanh, ban hang
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 sach) or (chieu tinh)) - canh ((doanh xuan) OR (doanh luan)) trang cong ban than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chieu tinh)) - canh ((doanh xuan) OR (doanh luan)) trang cong ban than tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (chieu tinh)) - canh ((doanh xuan) OR (doanh luan)) trang cong ban than tap".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chieu tinh)) - canh ((doanh xuan) OR (doanh luan)) trang cong ban than tap*.