Perhaps you should try some spelling variations:
johannes pfister » johanne foster, johannes dieter, johannes koster
johannes fischer » johan fischer, johannes liesche, johannes piscator
johanna fischer » johan fischer, johann fischart, johanna kissler

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