Perhaps you should try some spelling variations:
na literatura » la literatura, a literatura, a literature
di filosofia » la filosofia, e filosofia
ante studien » dante studies, aue studien, comte studien
y filosofia » e filosofia, a filosofia, la filosofia
texto ante » texto durante

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: texto ante studien ((y filosofia) OR (di filosofia)) na literatura.
• Adding a wildcard symbol may retrieve word variants: texto ante studien ((y filosofia) or (di filosofia)) na literatura*.