Perhaps you should try some spelling variations:
a literatura » la literatura, a literature, y literatura
date studies » dante studies, data studies, rate studies
3 filosofia » a filosofia, y filosofia, _ filosofia
e filosofia » la filosofia
texto date » text data, text datei, text daten

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "texto date studies ((3 filosofia) OR (e filosofia)) a literatura".
• Adding a wildcard symbol may retrieve word variants: texto date studies ((3 filosofia) OR (e filosofia)) a literatura*.