Perhaps you should try some spelling variations:
scale studies » scale study
lab filosofia » la filosofia, a filosofia, da filosofia
le literatura » la literatura, de literatura, e literatura
case studies » case study
filosofia le » filosofia de, filosofia e, filosofia del

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• The words AND, OR and NOT may confuse the search; try adding quotes: "best ((scale studies) OR (case studies)) lab filosofia le literatura".
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