Perhaps you should try some spelling variations:
"serie politicas publica." » "serie politicas publicas.", "serie politicas publicad.", "serie politicos republica.", "serie policiaca publica."
"slaves politica publicas." » "slaves politicas publicas.", "slaves politica publicaciones.", "slaves politicas publicass.", "slaves political publicas.", "claves politicas publicas.", "sociales politica publicas."
"sobre politica publica." » "sobre politicas publicas.", "sobre politicas publica."

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