Perhaps you should try some spelling variations:
johannes pinkerton » joannis pinkertonii, john pinkerton
johannes bosscha » johannes liesche
johannes wickert » johannes becker, johannes wicht, johannes wilhelm
johanna fischer » johannes fischer, johan fischer, johann fischart
johanne foster » joanne foster, johanna forster, johannes koster
johannes basch » johannes bauer, johannes backs, johannes barry

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