Perhaps you should try some spelling variations:
le literatura » la literatura, e literatura, de litteratura
de literatura » de litterature, la literatura, y literatura
less scaled » meso scaled, sets scaled, lesser scales
e filosofia » la filosofia
less scale » less stable, class scale, mass scale
student e » student _, student a, student 1

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: ((less scale) OR (less scaled)) student e filosofia ((le literatura) OR (de literatura)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((less scale) OR (less scaled)) student e filosofia ((le literatura) or (de literatura))".
• Adding a wildcard symbol may retrieve word variants: ((less scale) OR (less scaled)) student e filosofia ((le literatura) or (de literatura))*.