Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
tranh cua » doanh cua, manh cua
bang cong » dang cong, bang song, hang cong
cua bang » chua bang, cua ban, cua dang
cong tap » cuong tap, cong tac, cong tan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (chieu tinh)) - canh tranh cua bang cong tap ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chieu tinh)) - canh tranh cua bang cong tap ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chieu tinh)) - canh tranh cua bang cong tap ((toan tap) or (toan ban))*.