Perhaps you should try some spelling variations:
duale studien » duale studium, scale studien, duales studium
e fisiologia » e sociologia, de filologia
y literatura » la literatura
texto duale » texto durante
e filologia » de filologia, di filologia, e 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: "texto duale studien ((e filologia) OR (e fisiologia)) y literatura".
• Adding a wildcard symbol may retrieve word variants: texto duale studien ((e filologia) OR (e fisiologia)) y literatura*.