Perhaps you should try some spelling variations:
studi de » estudi de, studi del, studie de
"Studi de saggi" » "Studi di saggi", "Studi de santi", "Studi ddi saggi"
"studi e saggi" » "studi _ saggi", "studi di saggi"
"Studi de sang" » "Studi de san", "Studi de sans", "Studi de sangre"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (("studi e saggi") OR ((("Studi de saggi") OR ("Studi de sang")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"studi e saggi\") or (((\"Studi de saggi\") OR (\"Studi de sang\"))))".
• Removing quotes may allow a broader search: (( studi e saggi ) or ((( Studi de saggi ) OR ( Studi de sang )))).
• Adding a wildcard symbol may retrieve word variants: (("studi e saggi") or ((("Studi de saggi") OR ("Studi de sang"))))*.