Perhaps you should try some spelling variations:
stable studien » stadler studien, scale studien, table studies
de filosofica » de filosofia, e filosofica, e filosofia
filosofica la » filosofica da, filosofia la, filosofia da
la literatura » la litterature, a literature
tests stable » tests table, sets stable, test table
studien de » studien der, studien die, studien des

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

• Adding a wildcard symbol may retrieve word variants: tests stable studien de filosofica la literatura*.