Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politicas publicas.", "sobre politica publicaciones.", "sobre politicas publicass."
"elite politica publica." » "elite politicas publicas.", "elites politicas publica.", "etica politica publica.", "entre politica publica."
"serie politica al." » "serie politicas al.", "serie policiaca al.", "serie politica a.", "serie politica _.", "serie politica con."

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 al.") or ("sobre politica publicas."))) or ("elite politica publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie politica al.") OR ("sobre politica publicas."))) OR ("elite politica publica."))*.
• Removing quotes may allow a broader search: (((( serie politica al. ) or ( sobre politica publicas. ))) or ( elite politica publica. ))*.