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

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