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

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