Perhaps you should try some spelling variations:
protests during » proteins during, process during, processes during
during studies » docking studies, housing studies, aging studies
filosofica de » filosoficas de, filosofia de, filosofica da
de literatura » de litterature, la literatura, y literatura
5 filosofica » e filosofica, e filosofia, a filosofia

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• Adding a wildcard symbol may retrieve word variants: protests during studies 5 filosofica de literatura*.