Perhaps you should try some spelling variations:
del literatura » de literatura, pela literatura, da literatura
di filosofia » la filosofia, e filosofia
best duale » best deal, best deals
best scale » bast scale, rest scale, burst scale
studies di » studies die, studies div, studies ds

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: "((best duale) OR (best scale)) studies di filosofia del literatura".
• Adding a wildcard symbol may retrieve word variants: ((best duale) OR (best scale)) studies di filosofia del literatura*.