Perhaps you should try some spelling variations:
duale studium » duales studium, dualen studium, das studium
e literature » e literatur, life literature, prose literature
trust duale » trust doable, trust diane, trust scale
3 filosofia » a filosofia, y filosofia, _ filosofia
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: "trust duale studium ((3 filosofia) OR (e filosofia)) e literature".
• Adding a wildcard symbol may retrieve word variants: trust duale studium ((3 filosofia) OR (e filosofia)) e literature*.