Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
tranh cua » doanh cua, manh cua
tong cong » trong cong, cong cong, dung cong
cong sang » cong san, cong lang, cong vang
sang than » cang thang, dang thanh, sang tao
cua tong » cua cong, cua dong, cua nong
than cau » toan cau, phan cau, than cap

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 (chinh sach)) - canh tranh cua tong cong sang than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chinh sach)) - canh tranh cua tong cong sang than cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chinh sach)) - canh tranh cua tong cong sang than cau*.