Perhaps you should try some spelling variations:
la litterature » a literature
doe filosofia » de filosofia, e filosofia, di filosofia
la literatura » a literature
case studies » case study
studies doe » studies does, studies dose, studies do
basin » basic, basis

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: "basin case studies doe filosofia ((la literatura) OR (la litterature))*".