Perhaps you should try some spelling variations:
duales studium » das studium
en litterature » et litterature, une litterature, la litterature
en literatura » e literatura, pena literatura, la literatura
e filosofia » la filosofia
studium e » studium _, studium 1, studium 3
texto » textos, text, texts

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: "texto duales studium e filosofia ((en literatura) OR (en litterature))".
• Adding a wildcard symbol may retrieve word variants: texto duales studium e filosofia ((en literatura) OR (en litterature))*.