Perhaps you should try some spelling variations:
johannes fechner » johannes fuhner, johannes becker, johannes fischer
johannes bosscha » johannes liesche
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 fechner) OR (((johannes basch) OR (johannes bosscha)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((johannes fechner) or (((johannes basch) OR (johannes bosscha))))".
• Adding a wildcard symbol may retrieve word variants: ((johannes fechner) or (((johannes basch) OR (johannes bosscha))))*.