Perhaps you should try some spelling variations:
filosofica la » filosofica da, filosofia la, filosofia da
la literatura » la litterature, a literature
tests table » test tables, results table, test suitable
studien des » studie des, studien aus, studien die
studien der » studie der, studenten der

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: "tests table ((studien des) OR (studien der)) filosofica la literatura".
• Adding a wildcard symbol may retrieve word variants: tests table ((studien des) OR (studien der)) filosofica la literatura*.