Perhaps you should try some spelling variations:
"slave revolt" » "llave revolt", "suave revolt", "lave revolt", "slave revolte", "slave revol", "slave revolu"
"clave revolt" » "clave revolte", "clave revol", "clave revolu"
"save revolt" » "save revolte", "save revol", "save revolu"
"save revolta" » "save revoltea", "save revola", "save revolua", "save rivolta", "save revuelta", "save travolta"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("slave revolt") OR ("clave revolt"))) OR ((("save revolt") OR ("save revolta"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"slave revolt\") OR (\"clave revolt\"))) OR (((\"save revolt\") OR (\"save revolta\"))))".
• Removing quotes may allow a broader search: (((( slave revolt ) OR ( clave revolt ))) OR ((( save revolt ) OR ( save revolta )))).
• Adding a wildcard symbol may retrieve word variants: (((("slave revolt") OR ("clave revolt"))) OR ((("save revolt") OR ("save revolta"))))*.