Perhaps you should try some spelling variations:
protests during » proteins during, process during, processes during
during studie » during studies, during study, during soldier
y literatura » la literatura
a filosofia » la filosofia, di 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: "protests during studie ((a filosofia) OR (e filosofia)) y literatura".
• Adding a wildcard symbol may retrieve word variants: protests during studie ((a filosofia) OR (e filosofia)) y literatura*.