Perhaps you should try some spelling variations:
life literature » polite literature, prose literature
e literature » e literatur, prose literature, norse literature
y filosofia » e filosofia, a filosofia, la filosofia
studien y » studien _, studien 3, studien 4
test den » test der, test des, test de

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: "test den studien y filosofia ((e literature) OR (life literature))*".