Perhaps you should try some spelling variations:
suitable studie » suitable source
best suitable » most suitable, being suitable, very suitable
die filosofia » di filosofia, de filosofia, e filosofia
a literatura » la literatura, y literatura, a literatur
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: "best suitable studie die filosofia ((a literatura) OR (a literature))".
• Adding a wildcard symbol may retrieve word variants: best suitable studie die filosofia ((a literatura) OR (a literature))*.