Perhaps you should try some spelling variations:
"johannes dietlein muller" » "johannes dieter muller", "johannes blumlein muller", "johannes detlef muller"
"johannes pfister muller" » "johannes dieter muller", "johannes fischer muller", "johannes koster muller", "johannes pfisters muhle", "johannes pachter muller"
"johanne foster muller" » "joanne foster muller", "johanna forster muller", "johannes koster muller", "johanne foster walter", "johanne gunter muller", "johanne foster mother"
"johannes peter muller" » "johannes dieter muller", "johann peter muller", "johannes beutler muller", "johannes peter miller", "johannes peter koller", "johannes heiner muller"

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 pfister muller") OR ("johanne foster muller"))) OR ("johannes dietlein muller"))) OR ("johannes peter muller")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"johannes pfister muller\") OR (\"johanne foster muller\"))) or (\"johannes dietlein muller\"))) or (\"johannes peter muller\"))".
• Removing quotes may allow a broader search: (((((( johannes pfister muller ) OR ( johanne foster muller ))) or ( johannes dietlein muller ))) or ( johannes peter muller )).
• Adding a wildcard symbol may retrieve word variants: (((((("johannes pfister muller") OR ("johanne foster muller"))) or ("johannes dietlein muller"))) or ("johannes peter muller"))*.