Perhaps you should try some spelling variations:
science stories » science studies, science series, science theories
di science » i science, ii science, di scienze
de morale » la morale
e morali » e moral, e morais
e morale » et morale, _ morale, la morale

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: biblioteca di science stories ((e morali) OR (((((e morale) OR (de morale))) OR (_ moral)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "biblioteca di science stories ((e morali) or (((((e morale) OR (de morale))) or (_ moral))))".
• Adding a wildcard symbol may retrieve word variants: biblioteca di science stories ((e morali) or (((((e morale) OR (de morale))) or (_ moral))))*.