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