Perhaps you should try some spelling variations:
le literature » e literature, 2e literature, ce literature
tests stable » tests table, sets stable, tests scale
filosofia le » filosofia de, filosofia e, filosofia del
i filosofia » di filosofia, e filosofia, a filosofia
test table » test tables, tests table, test tabelle
studied i » studied ii, studied vi, studied _

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 stable) OR (test table)) studied i filosofia le literature".
• Adding a wildcard symbol may retrieve word variants: ((tests stable) OR (test table)) studied i filosofia le literature*.