Perhaps you should try some spelling variations:
dualen studium » duales studium, duale studium
da filosofia » la filosofia, di filosofia, a filosofia
a literatura » la literatura, y literatura, a literatur
des dualen » der dualen, des idealen
studium da » studium das, studium a, studium d

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: "des dualen studium da filosofia ((a literatura) OR (a literature))".
• Adding a wildcard symbol may retrieve word variants: des dualen studium da filosofia ((a literatura) OR (a literature))*.