Findings:

• duro (user)
• Gesso duro
• Io
• Io moth
• Cisco IOS
• Ios
• Guido, i' vorrei che tu e Lapo ed io
• buffered IO
• Io (user)
• Blind Io
• 'io (user)
• Deus io volt
• Apple iOS

If you Log in you could create a "io etterno duro" node. If you don't already have an account, you can register here.