Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
van phan » van phong, van thanh, luan phan
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - canh tranh cua ((hang cong) or (dung cong)) van phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - canh tranh cua ((hang cong) OR (dung cong)) van phan dau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - canh tranh cua ((hang cong) or (dung cong)) van phan dau*.