Perhaps you should try some spelling variations:
"slaves political publico." » "slaves politico publico.", "slaves politicas publicas.", "slaves politicas publicad.", "claves politicas publico.", "class political publico.", "blacks political publico."
"serie policiaca publico." » "serie politico publico.", "serie politica publicas.", "serie oficial publico."
"serie politica publica." » "serie politicas publicas.", "serie politicas publica.", "sobre politica publica.", "elite politica publica."

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("slaves political publico.") or ("serie policiaca publico."))) or ("serie politica publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("slaves political publico.") OR ("serie policiaca publico."))) OR ("serie politica publica.")).
• Removing quotes may allow a broader search: (((( slaves political publico. ) or ( serie policiaca publico. ))) or ( serie politica publica. )).
• Adding a wildcard symbol may retrieve word variants: (((("slaves political publico.") or ("serie policiaca publico."))) or ("serie politica publica."))*.