Perhaps you should try some spelling variations:
during studied » burning studied, docking studied, springs studied
during studies » docking studies, housing studies, aging studies
e filosofica » e filosofia, e filosofiche, a filosofia
filosofica y » filosofia y, filosofica e, filosofica _
y literatura » la literatura

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: "tests ((during studied) OR (during studies)) e filosofica y literatura".
• Adding a wildcard symbol may retrieve word variants: tests ((during studied) OR (during studies)) e filosofica y literatura*.