Perhaps you should try some spelling variations:
data studium » das studium, data studies, data studio
filologica e » filologia e, filologici e, filosofica e
studium des » studium der
filologia y » filologia e, filosofia y, biologia y

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: "text data studium des ((filologia y) OR (filologica e)) literatura".
• Adding a wildcard symbol may retrieve word variants: text data studium des ((filologia y) OR (filologica e)) literatura*.