Perhaps you should try some spelling variations:
pela literatura » pena literatura, la literatura, a literatura
duale studien » duale studium, scale studien, duales studium
equity duale » equity deal, equity deals, equity sale
a filosofia » la filosofia, di filosofia
e filosofia » la filosofia

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: equity duale studien ((a filosofia) OR (e filosofia)) pela literatura.
• Adding a wildcard symbol may retrieve word variants: equity duale studien ((a filosofia) or (e filosofia)) pela literatura*.