Perhaps you should try some spelling variations:
johannes fischer » johanna fischer, johannes liesche, johannes pfister
johan fischer » johanna fischer, johann fischart, johan schei
johan richter » john richter, johannes richter, von richter

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: ((johannes fischer) OR (((johan fischer) OR (johan richter)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((johannes fischer) or (((johan fischer) OR (johan richter))))".
• Adding a wildcard symbol may retrieve word variants: ((johannes fischer) or (((johan fischer) OR (johan richter))))*.