Perhaps you should try some spelling variations:
"proletarias revolution" » "proletarios revolution", "proletariat revolution", "proletariado revolution", "proletarias evolucion", "proletarias revoluciones", "proletariados revolution"
"proletarias revolucion" » "proletarios revolucion", "proletariat revolucion", "proletariado revolucion", "proletariados revolucion"
"proletaria revolution" » "proletaria evolucion", "proletaria revoluciones", "proletariado revolution"

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

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