Perhaps you should try some spelling variations:
del literature » model literature, abel literature, fuel literature
table studium » table scandium, table student, table study
table studies » cable studies, bible studies, eagle studies
e filosofia » la filosofia

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 studium) OR (table studies)) e filosofia del literature".
• Adding a wildcard symbol may retrieve word variants: test ((table studium) OR (table studies)) e filosofia del literature*.