Perhaps you should try some spelling variations:
stadler studien » realer studien, stifter studien, studie studien
tests stadler » tests stable, 21st stadler, teste stadien
die filosofia » di filosofia, de filosofia, e filosofia
da literatura » la literatura, a literatura, de literatura
filosofia da » filosofia de, filosofia del, filosofia e
studien die » studie die, studien der

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

• Adding a wildcard symbol may retrieve word variants: tests stadler studien die filosofia da literatura*.