Perhaps you should try some spelling variations:
"slaves political public." » "claves politicas public.", "class political public.", "blacks political public.", "slaves politicas publicad.", "slaves politica publicas.", "slaves politico publico."
"serie politicas publicas." » "serie policiaca publicas.", "serie policiacas publicas.", "sobre politicas publicas.", "elite politicas publicas."
"serie politica publica." » "serie policiaca 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: (((("serie politicas publicas.") or ("slaves political public."))) or ("serie politica publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie politicas publicas.") OR ("slaves political public."))) OR ("serie politica publica.")).
• Removing quotes may allow a broader search: (((( serie politicas publicas. ) or ( slaves political public. ))) or ( serie politica publica. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie politicas publicas.") or ("slaves political public."))) or ("serie politica publica."))*.