Perhaps you should try some spelling variations:
"serie politicas publicad." » "serie politicas publicas.", "serie politica publica.", "serie politicos republica.", "serie policiaca publicad."
"sobre politica publicas." » "sobre politicas publicas.", "sobre politica publica.", "sobre politica publicaciones."
"sobre 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 politica publicas.") or ("serie politicas publicad."))) or ("sobre politicas pablo."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sobre politica publicas.") OR ("serie politicas publicad."))) OR ("sobre politicas pablo.")).
• Removing quotes may allow a broader search: (((( sobre politica publicas. ) or ( serie politicas publicad. ))) or ( sobre politicas pablo. )).
• Adding a wildcard symbol may retrieve word variants: (((("sobre politica publicas.") or ("serie politicas publicad."))) or ("sobre politicas pablo."))*.