Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
chieu sach » chiet tach, chieu sang, chieu xanh
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
cong san » cong tac
san gian » dan gian, san giao, van gian
gian cac » gian dan, gian cua

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 (chinh sach)) - ((thanh thuong) or (anh huong)) cua thong cong san gian cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chinh sach)) - ((thanh thuong) OR (anh huong)) cua thong cong san gian cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) OR (chinh sach)) - ((thanh thuong) or (anh huong)) cua thong cong san gian cac".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) OR (chinh sach)) - ((thanh thuong) or (anh huong)) cua thong cong san gian cac*.