Perhaps you should try some spelling variations:
"valor formativo de grado superior." » "valor optativo de grado superior.", "valores normativos de grado superior.", "valores informativos de grado superior.", "valor formativos de grado superior.", "valor normativo de grado superior.", "valor formativo en grado superior."
"valor educativa al grano superior." » "valor educativo al grano superior.", "labor educativa al grano superior.", "valores educativos al grano superior.", "valor educativa al grau superior.", "valor educativa al tramos superior.", "valor educativa al plazo superior.", "valor educativa a grano superior.", "valor educativa del grano superior.", "valor educativa en grano superior.", "valor educativa el grano superior.", "valor educativa al gran superior."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("valor formativo de grado superior.") or ("valor educativa al grano superior."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("valor formativo de grado superior.") OR ("valor educativa al grano superior."))*.
• Removing quotes may allow a broader search: (( valor formativo de grado superior. ) or ( valor educativa al grano superior. ))*.