Perhaps you should try some spelling variations:
y literatura » la literatura
filosofia y » filosofia e, filosofia _, filosofia de
besten der » bestehen der, bestimmen der, bestehens der
studie di » studie die, studie de, studie der
studie d » studie 2, studie _, studie 1

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: "besten der ((studie di) OR (studie d)) filosofia y literatura".
• Adding a wildcard symbol may retrieve word variants: besten der ((studie di) OR (studie d)) filosofia y literatura*.