Perhaps you should try some spelling variations:
des filosofica » de filosofia, e filosofia, di filosofia
table studien » table studies, table student, cable studies
la literatura » la litterature, a literature
e filosofica » e filosofia, e filosofiche, a filosofia
tests table » test tables, results table, test suitable

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