Perhaps you should try some spelling variations:
"proletariat revolution" » "proletarias revolution", "proletariado revolution", "proletarios revolution", "proletariat evolucion", "proletariat revoluciones", "proletariadot revolution"
"proletariat revolucion" » "proletarias revolucion", "proletariado revolucion", "proletarios revolucion", "proletariadot 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: (((("proletariat revolution") OR ("proletaria revolution"))) OR ("proletariat revolucion"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"proletariat revolution\") OR (\"proletaria revolution\"))) OR (\"proletariat revolucion\"))".
• Removing quotes may allow a broader search: (((( proletariat revolution ) OR ( proletaria revolution ))) OR ( proletariat revolucion )).
• Adding a wildcard symbol may retrieve word variants: (((("proletariat revolution") OR ("proletaria revolution"))) OR ("proletariat revolucion"))*.