Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
canh thanh » canh tranh, anh thanh, nhanh thanh
danh thanh » dinh thanh, dang thanh, nhanh thanh
cong luan » tong luan, cong tuan, dong luan
tang luan » dung luan
qua cong » cua cong, qua song, va cong

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 - ((canh thanh) OR (danh thanh)) qua cong ((cong luan) or (tang luan)) van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - ((canh thanh) OR (danh thanh)) qua cong ((cong luan) OR (tang luan)) van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sach - ((canh thanh) OR (danh thanh)) qua cong ((cong luan) or (tang luan)) van ban".
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - ((canh thanh) OR (danh thanh)) qua cong ((cong luan) or (tang luan)) van ban*.