Perhaps you should try some spelling variations:
la litterature » a literature
table student » male student, enable students, mobile student
de filosofia » di filosofia, la filosofia, a filosofia
tests table » test tables, results table, test suitable
e filosofia » la filosofia

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tests table student ((de filosofia) OR (e filosofia)) la litterature.
• Adding a wildcard symbol may retrieve word variants: tests table student ((de filosofia) or (e filosofia)) la litterature*.