Perhaps you should try some spelling variations:
tests stable » tests table, test table, tests scale
e literature » e literatur, life literature, prose literature
sets stable » sets table, setup stable, sets state
e filosofia » la filosofia
filosofia e » filosofia de, filosofia del
studium e » studium _, studium 1, studium 3

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 (sets stable)) studium e filosofia e literature".
• Adding a wildcard symbol may retrieve word variants: ((tests stable) OR (sets stable)) studium e filosofia e literature*.