Perhaps you should try some spelling variations:
"serie politica publicas." » "serie politicas publicas.", "serie politica publicaciones.", "serie politicas publicass.", "serie policiaca publicas.", "elite politica publicas."
"sobre politica publica." » "sobre politicas publicas."
"sobre politicas pablo." » "serie politicas pablo.", "sobre politica pablo.", "sobre politicas para.", "sobre politicas paz."

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