Perhaps you should try some spelling variations:
"vassallo" » "vassals", "hassall", "vassalso", "hassallo"
"vassall" » "vassals", "hassall"
"vassarl" » "vassar", "vassal", "vassart"
"vassil" » "vasil", "vassilis"

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: (("vassallo" OR ("vassall" OR "vassarl")) OR "vassil").
• Removing quotes may allow a broader search: (( vassallo or ( vassall or vassarl )) or vassil ).
• Adding a wildcard symbol may retrieve word variants: (("vassallo" or ("vassall" or "vassarl")) or "vassil")*.