Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politica publica.", "sobre politica publicaciones.", "sobre politicas publicas."
"elite politico publico." » "elite politica publica.", "elite politico republicano.", "elite politicos republica.", "elite politica publico.", "delito politico publico.", "elites politicas publico."
"serie politicas publicas." » "serie policiaca publicas."

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