Perhaps you should try some spelling variations:
johanna fischer » johannes fischer, johann fischart, johanna kissler
johan fischer » johannes 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: ((((johan fischer) OR (johan richter))) OR (johanna fischer))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((johan fischer) OR (johan richter))) or (johanna fischer))*".