Perhaps you should try some spelling variations:
"slave revolt" » "slave revolta", "slave revolte", "slave revolu", "slave revolut", "slave revelt", "slave evolt"
"slave revolua" » "slave revolta", "slave revalua", "slave revolu", "slave revoluua", "slave revelua", "slave evolua"
"slave revol" » "slave revolu", "slave revel", "slave evol"
"save revelt" » "save revela", "save revel", "save revell"

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 ("slave revolua"))) OR ("slave revol"))) OR ("save revelt"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"slave revolt\") OR (\"slave revolua\"))) OR (\"slave revol\"))) OR (\"save revelt\"))".
• Removing quotes may allow a broader search: (((((( slave revolt ) OR ( slave revolua ))) OR ( slave revol ))) OR ( save revelt )).
• Adding a wildcard symbol may retrieve word variants: (((((("slave revolt") OR ("slave revolua"))) OR ("slave revol"))) OR ("save revelt"))*.