Perhaps you should try some spelling variations:
franzens » frances
francesco » francisco
-universit%c3%a4t%20graz%22 » -universita%c3%a4t%20graz%22, -universitat%c3%a4t%20graz%22, -universitats%c3%a4t%20graz%22
universitatats%c3%a4t%20graz%22 » universitaatats%c3%a4t%20graz%22, universitatatats%c3%a4t%20graz%22, universitatsatats%c3%a4t%20graz%22, universitats%c3%a4t%20graz%22, universitatsbi%c3%a4t%20graz%22, universitatsse%c3%a4t%20graz%22
universitatsrat%c3%a4t%20graz%22 » universitaatsrat%c3%a4t%20graz%22, universitatatsrat%c3%a4t%20graz%22, universitatsatsrat%c3%a4t%20graz%22, universitatsroman%c3%a4t%20graz%22, universitatsprof%c3%a4t%20graz%22, universitatsplan%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 (france OR francesco))(-universit%c3%a4t%20graz%22 OR -(universitatats%c3%a4t%20graz%22 OR universitatsrat%c3%a4t%20graz%22)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "%22karl-(franzens or (france or francesco))(-universit%c3%a4t%20graz%22 or -(universitatats%c3%a4t%20graz%22 OR universitatsrat%c3%a4t%20graz%22))".
• Adding a wildcard symbol may retrieve word variants: %22karl-(franzens or (france or francesco))(-universit%c3%a4t%20graz%22 or -(universitatats%c3%a4t%20graz%22 OR universitatsrat%c3%a4t%20graz%22))*.