Perhaps you should try some spelling variations:
"johann gottfried fichte" » "johann gottfried michael", "johann gottlieb fichte", "johann gottfried biewe"
"johann fried michael" » "johann friedman michael", "johann arnd michael", "johann frick michael", "johann friedrich michael", "johann franz michael"

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