Perhaps you should try some spelling variations:
"vassal" » "vassall", "vassil", "vassar"
"vassals" » "vassalls", "vassils", "vassars"
"vassallo" » "vassalllo", "vassillo", "vassarlo", "vassall", "hassall"
"vassill" » "vassil", "vassall", "vassili"

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: (("vassal" OR (("vassals" OR "vassilis") OR "vassallo")) OR "vassill").
• Removing quotes may allow a broader search: (( vassal or (( vassals or vassilis ) or vassallo )) or vassill ).
• Adding a wildcard symbol may retrieve word variants: (("vassal" or (("vassals" or "vassilis") or "vassallo")) or "vassill")*.