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

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