Perhaps you should try some spelling variations:
da literatura » la literatura, de literatura, na literatura
stufe studie » stufen studie, studie studie, studie studien
a literatura » la literatura, a literature, y literatura
erste stufe » erster stufe
a filosofia » la filosofia, e filosofia, di filosofia
studie a » studie am, studie 2, studie _

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: "erste stufe studie a filosofia ((da literatura) OR (a literatura))*".