Perhaps you should try some spelling variations:
"vassal" » "vassall", "vassil", "vassallo"
"vassals" » "vassalls", "vassils", "vassallos", "vassilis"
"vassallols" » "vassalllols", "vassillols", "vassallolols", "vassallos", "vassallo", "vasallos"
"vassar" » "nassar"
"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 "vassar") OR ("vassals" OR "vassallols")) OR "vassill").
• Removing quotes may allow a broader search: ((( vassal or vassar ) or ( vassals or vassallols )) or vassill ).
• Adding a wildcard symbol may retrieve word variants: ((("vassal" or "vassar") or ("vassals" or "vassallols")) or "vassill")*.