Perhaps you should try some spelling variations:
johannes fischer » johan fischer, johannes pfister, johannes piscator
johannes richter » johannes michael, johan richter, johannes dieter
johannes liesche » johannes basch, johannes berchem, johannes bosscha
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: ((((((johannes fischer) OR (johannes richter))) OR (johanna fischer))) OR (johannes liesche)).
• Adding a wildcard symbol may retrieve word variants: ((((((johannes fischer) or (johannes richter))) or (johanna fischer))) or (johannes liesche))*.