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

You may be able to get more results by adjusting your search query.

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