Perhaps you should try some spelling variations:
orale studium » duale studium, duales studium, dualen studium
di filosofia » la filosofia
e literature » e literatur, life literature, prose literature
e filosofia » la filosofia
test orale » test oracle, test oral, test oracles

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