Perhaps you should try some spelling variations:
"acta philosophical catechism" » "acta philosophical naturalism", "acta philosophical scepticism", "acta philosophical idealism", "meta philosophical catechism", "art philosophical catechism", "a philosophical catechism"
"acta philosophical feminism" » "acta philosophical darwinism", "acta philosophical pessimism", "acta philosophical egoism", "meta philosophical feminism", "art philosophical feminism", "a philosophical feminism"
"acta philosophical humanism" » "acta philosophical posthumanism", "acta philosophical idealism", "acta philosophical realism", "meta philosophical humanism", "art philosophical humanism", "a philosophical humanism"

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: (((("acta philosophical feminism") OR ("acta philosophical humanism"))) OR ("acta philosophical catechism")).
• Removing quotes may allow a broader search: (((( acta philosophical feminism ) or ( acta philosophical humanism ))) or ( acta philosophical catechism )).
• Adding a wildcard symbol may retrieve word variants: (((("acta philosophical feminism") or ("acta philosophical humanism"))) or ("acta philosophical catechism"))*.