Perhaps you should try some spelling variations:
surface study » surface studies, surface studied, surface state
di filosofia » la filosofia, e filosofia
e literature » e literatur, life literature, prose literature
space study » space studies
filosofia e » filosofia de, filosofia del

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 ((space study) OR (surface study)) di filosofia e literature".
• Adding a wildcard symbol may retrieve word variants: tests ((space study) OR (surface study)) di filosofia e literature*.