Perhaps you should try some spelling variations:
nodules studies » modules studies, molecules studies, granules studies
na literatura » a literatura, a literature, y literatura
la literatura » la litterature, a literature
ext nodules » ext modules, text modules, extra modules
e filosofia » la filosofia

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: "ext nodules studies e filosofia ((na literatura) OR (la literatura))".
• Adding a wildcard symbol may retrieve word variants: ext nodules studies e filosofia ((na literatura) OR (la literatura))*.