Perhaps you should try some spelling variations:
chieu sach » chiet tach, chieu sang, chieu xanh
thong cong » trong cong, tong cong, thong thong
tranh cua » doanh cua, manh cua
cua thong » cua thuong, cua khong, cua tong
cong bai » cuong bai, cong hai, cung bai
toan cao » toan ban
toan tap » toan ban

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) or (chinh sach)) - canh tranh cua thong cong bai ((toan cao) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu sach) OR (chinh sach)) - canh tranh cua thong cong bai ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu sach) or (chinh sach)) - canh tranh cua thong cong bai ((toan cao) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu sach) or (chinh sach)) - canh tranh cua thong cong bai ((toan cao) OR (toan tap))*.