Perhaps you should try some spelling variations:
des filologia » de filologia, di filologia, e filologia
data studium » das studium, data studies, data studied
y literatura » la literatura
data studio » data studies, data study
filologia y » filologia e, filologica e, filosofia y

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: "text ((data studium) OR (data studio)) des filologia y literatura".
• Adding a wildcard symbol may retrieve word variants: text ((data studium) OR (data studio)) des filologia y literatura*.