Perhaps you should try some spelling variations:
tieu sach » chieu sach, dien sach, te sach
tranh cua » doanh cua, manh cua
cua nhung » va nhung
hoang hai » hoang thi, hoang van
cung bai » cuong bai, dung bai, nhung bai
toan cau » toan cao, toan tap, toan tai
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: theo tieu sach - canh tranh cua nhung ((cung bai) or (hoang hai)) ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sach - canh tranh cua nhung ((cung bai) OR (hoang hai)) ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo tieu sach - canh tranh cua nhung ((cung bai) or (hoang hai)) ((toan cau) or (toan ban))*.