Perhaps you should try some spelling variations:
"johann gottfried fichte" » "johann gottfried michael", "johann gottfried biewe", "johann gottfried kate"
"johann gottfried karl" » "johann gottfried kate", "johann gottfried kurt", "johann gottfried lara"

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: (((("johann gottfried fichte") OR ("johann gottfried karl"))) OR ("johann gottlieb fichte")).
• Removing quotes may allow a broader search: (((( johann gottfried fichte ) or ( johann gottfried karl ))) or ( johann gottlieb fichte )).
• Adding a wildcard symbol may retrieve word variants: (((("johann gottfried fichte") or ("johann gottfried karl"))) or ("johann gottlieb fichte"))*.