Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politica publica.", "sobre politica publicaciones.", "sobre politicas publicas."
"elite politica publico." » "elite politica publica.", "elite politico publico.", "elite politicas publicad.", "elites politicas publico.", "etica politica publico.", "entre politica 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: (((("elite politica publico.") or ("sobre politica publicas."))) or ("serie politicas publicas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("elite politica publico.") OR ("sobre politica publicas."))) OR ("serie politicas publicas."))*.
• Removing quotes may allow a broader search: (((( elite politica publico. ) or ( sobre politica publicas. ))) or ( serie politicas publicas. ))*.