Perhaps you should try some spelling variations:
filologica e » filologia e, filologici e, filosofica e
filologia y » filologia e, filosofia y, biologia y
studien di » studien die, studien der, studien bei
studien dd » studies dd, studien der, studien die
tests aue » tests auf, tests aus, tests acute

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: tests aue ((studien di) OR (studien dd)) ((filologia y) OR (filologica e)) literatura.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tests aue ((studien di) OR (studien dd)) ((filologia y) or (filologica e)) literatura".
• Adding a wildcard symbol may retrieve word variants: tests aue ((studien di) OR (studien dd)) ((filologia y) or (filologica e)) literatura*.