Perhaps you should try some spelling variations:
johannes fischer » johanna fischer, johan fischer, johannes piscator
johannes pfister » johanne foster, johannes dieter, johannes koster
johannes liesche » johannes basch, johannes bosscha, johannes kiess
johannes berchem » johannes becker, johannes berger, johannes bechteln

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