Perhaps you should try some spelling variations:
"vassal" » "vassil", "vassallo"
"vassals" » "vassils", "vassallos", "vassilis"
"vassalls" » "vassills", "vassallols", "vassallos", "vassallo", "vassalos", "hassalls"
"vassall" » "vassill", "vassallol", "hassall"
"vassar" » "nassar"
"vassill" » "vassil", "vassili", "vassily"

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 "vassar") OR ("vassals" OR "vassalls")) OR ("vassill" OR "vassall")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((\"vassal\" or \"vassar\") or (\"vassals\" or \"vassalls\")) or (\"vassill\" OR \"vassall\"))".
• Removing quotes may allow a broader search: ((( vassal or vassar ) or ( vassals or vassalls )) or ( vassill OR vassall )).
• Adding a wildcard symbol may retrieve word variants: ((("vassal" or "vassar") or ("vassals" or "vassalls")) or ("vassill" OR "vassall"))*.