Perhaps you should try some spelling variations:
agents safety » patients safety, plants safety, accidents safety
1 filosofica » e filosofia, a filosofia, y filosofia
e filosofica » e filosofia, e filosofiche, a filosofia
a literatura » la literatura, a literature, y literatura

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: "agents safety studies ((1 filosofica) OR (e filosofica)) a literatura".
• Adding a wildcard symbol may retrieve word variants: agents safety studies ((1 filosofica) OR (e filosofica)) a literatura*.