Perhaps you should try some spelling variations:
"legal epistemology" » "social epistemology", "personal epistemology"
"logic epistemology" » "genetic epistemology"
"moral epistemology" » "formal epistemology", "social epistemology", "personal 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: (((("legal epistemology") OR ("logic epistemology"))) OR ("moral epistemology")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"legal epistemology\") OR (\"logic epistemology\"))) or (\"moral epistemology\"))".
• Removing quotes may allow a broader search: (((( legal epistemology ) OR ( logic epistemology ))) or ( moral epistemology )).
• Adding a wildcard symbol may retrieve word variants: (((("legal epistemology") OR ("logic epistemology"))) or ("moral epistemology"))*.