Perhaps you should try some spelling variations:
failure theories » failure theory, failure therapy
failure stories » failure studies, failure scores, failure stress
la litterature » a literature
da filosofia » la filosofia, di filosofia, a filosofia
filosofia la » filosofia da, filosofia le, filosofica da

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: post ((failure stories) OR (failure theories)) da filosofia la litterature.
• Adding a wildcard symbol may retrieve word variants: post ((failure stories) or (failure theories)) da filosofia la litterature*.