Perhaps you should try some spelling variations:
"matematica la cultura" » "matematica da cultura", "matematica a cultura", "matematici la cultura", "matematica la culture", "matematica a cultural"
matematicas y » matematica e, matematica _, matematica i
matematica y » matematica e, matematica _, matematica i

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: (("matematica la cultura") OR ("((matematica y) or (matematicas y)) cultura")).
• Removing quotes may allow a broader search: (( matematica la cultura ) or ( ((matematica y) or (matematicas y)) cultura )).
• Adding a wildcard symbol may retrieve word variants: (("matematica la cultura") or ("((matematica y) or (matematicas y)) cultura"))*.