Perhaps you should try some spelling variations:
johannes fischer » johan fischer, johannes fechner, johannes liesche
johanna fischer » johan fischer, johann fischart, johanna kissler
johannes dieter » johannes dietlein, johannes pfister, johannes 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: ((johanna fischer) OR (((johannes fischer) OR (johannes dieter)))).
• Adding a wildcard symbol may retrieve word variants: ((johanna fischer) or (((johannes fischer) or (johannes dieter))))*.