Perhaps you should try some spelling variations:
"sobre politicas publico." » "sobre politicas publicas.", "sobre politicas publicad.", "sobre politico publico.", "sobre politica publico."
"serie politica publica." » "serie politicas publicas.", "serie policiaca publica.", "sobre politica publica.", "elite politica publica."
"serie politicas pablo." » "serie policiaca pablo.", "serie politica pablo.", "serie politicas para.", "serie politicas paz.", "serie policiacas pablo.", "sobre politicas pablo.", "elite politicas pablo."

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