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

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: "test table student ((de filosofia) OR (di filosofia)) la literatura".
• Adding a wildcard symbol may retrieve word variants: test table student ((de filosofia) OR (di filosofia)) la literatura*.