Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
thanh tuong » thanh tung, thanh huong, thanh cuong
chieu sach » chinh sach, chiet tach, chieu sang
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
dan chan » dan ca, van chat

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