Perhaps you should try some spelling variations:
frances » france
francesco » franceco, francisco
-universit%c3%a4t%20graz%22 » -universitat%c3%a4t%20graz%22, -universitare%c3%a4t%20graz%22
universita%c3%a4t%20graz%22 » universitata%c3%a4t%20graz%22, universitarea%c3%a4t%20graz%22, universitat%c3%a4t%20graz%22, universitaten%c3%a4t%20graz%22
universitats%c3%a4t%20graz%22 » universitatats%c3%a4t%20graz%22, universitareats%c3%a4t%20graz%22, universitatts%c3%a4t%20graz%22, universitatents%c3%a4t%20graz%22

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: %22karl-(franzens OR (frances OR francesco))((-universit%c3%a4t%20graz%22 OR -universita%c3%a4t%20graz%22) OR -universitats%c3%a4t%20graz%22).
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22karl-(franzens or (frances or francesco))((-universit%c3%a4t%20graz%22 OR -universita%c3%a4t%20graz%22) or -universitats%c3%a4t%20graz%22)".
• Adding a wildcard symbol may retrieve word variants: %22karl-(franzens or (frances or francesco))((-universit%c3%a4t%20graz%22 OR -universita%c3%a4t%20graz%22) or -universitats%c3%a4t%20graz%22)*.