Perhaps you should try some spelling variations:
"sobre politica publicass." » "sobre politica publicas.", "sobre politicas publicas.", "sobre politica publica.", "sobre politicas publicass."
"serie politicas publica." » "serie politicas publicas.", "serie politicas publicad.", "serie politica publica.", "serie policiaca publica."
"sobre politico publico." » "sobre politica publica.", "sobre politica publicas.", "sobre politico republicano.", "sobre politicas publico.", "hombre politico publico.", "obra politico publico."

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