Perhaps you should try some spelling variations:
duale studies » duale studien, duale studium, male studies
scale studies » case studies, scale study
dd filosofica » di filosofia, de filosofia, da filosofia
filosofica la » filosofica da, filosofia la, filosofia da
la literatura » la litterature, a literature

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: "best ((duale studies) OR (scale studies)) dd filosofica la literatura".
• Adding a wildcard symbol may retrieve word variants: best ((duale studies) OR (scale studies)) dd filosofica la literatura*.