Perhaps you should try some spelling variations:
models studies » model studies, modern studies, modeling studies
de litterature » la litterature, et litterature
le literatura » la literatura, de literatura, e literatura
rosi models » roi models, rosi modell, osi model
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: rosi models studies e filosofia ((le literatura) OR (de litterature)).
• Adding a wildcard symbol may retrieve word variants: rosi models studies e filosofia ((le literatura) or (de litterature))*.