Perhaps you should try some spelling variations:
duale studien » duale studium, scale studien, duales studium
femto duale » femto dalk, femto scale
e filosofia » la filosofia
filosofia e » filosofia de, filosofia del
studien e » studien es, studien _, studien 3

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: "femto duale studien e filosofia e (literatur OR literature)".
• Adding a wildcard symbol may retrieve word variants: femto duale studien e filosofia e (literatur OR literature)*.