Perhaps you should try some spelling variations:
testing during » testing spring, testing debugging
during studie » during studies, during study, during soldier
de literatura » de litterature, la literatura, y literatura
e filosofica » e filosofiche, a filosofia, y filosofia
e filosofia » la 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: "testing during studie ((e filosofica) OR (e filosofia)) de literatura".
• Adding a wildcard symbol may retrieve word variants: testing during studie ((e filosofica) OR (e filosofia)) de literatura*.