Perhaps you should try some spelling variations:
"1872 philosophy: general." » "1616 philosophy: general.", "1 philosophy: general.", "2 philosophy: general."
"1976 philosophy: general." » "1616 philosophy: general.", "1989 philosophy: general.", "1 philosophy: general."
"13 philosophy: general." » "1 philosophy: general.", "2 philosophy: general.", "b philosophy: general."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("1872 philosophy: general.") OR ("1976 philosophy: general."))) or ("13 philosophy: general."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("1872 philosophy: general.") OR ("1976 philosophy: general."))) OR ("13 philosophy: general.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"1872 philosophy: general.\") OR (\"1976 philosophy: general.\"))) or (\"13 philosophy: general.\"))".
• Removing quotes may allow a broader search: (((( 1872 philosophy: general. ) OR ( 1976 philosophy: general. ))) or ( 13 philosophy: general. )).
• Adding a wildcard symbol may retrieve word variants: (((("1872 philosophy: general.") OR ("1976 philosophy: general."))) or ("13 philosophy: general."))*.