Using this form is possible to effect with Google searches inside the site:

• For the search single terms can be inserted
• Sentences and combinations of terms must be contained among quotation marks (es. "Encyclopedic dictionary").
• The results give the priority to the documents in which the sought after terms are found near between them.
• To exclude a term from the search is enough to add less directly ("-") a space and the sign in front of the term to exclude.