Perhaps you should try some spelling variations:
die filosofica » di filosofia, de filosofia, e filosofica
stents safety » agents safety, events safety, tenth safety
safety studie » safety studies, safety study, safety stories
a literatura » la literatura, a literature, a literatur
y literatura » la literatura
studie die » studie der

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: "stents safety studie die filosofica ((a literatura) OR (y literatura))".
• Adding a wildcard symbol may retrieve word variants: stents safety studie die filosofica ((a literatura) OR (y literatura))*.