Perhaps you should try some spelling variations:
"epistemologia" » "epistemologie", "epistemological", "epistemology"
"epistemologische" » "epistemological", "epidemiologische", "epistemologie"
"epistemologies" » "epistemological", "epistemology"

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: (("epistemologia" OR "epistemologische") OR "epistemologies").
• Removing quotes may allow a broader search: (( epistemologia or epistemologische ) or epistemologies ).
• Adding a wildcard symbol may retrieve word variants: (("epistemologia" or "epistemologische") or "epistemologies")*.