Perhaps you should try some spelling variations:
"serie politica publica." » "serie politicas publicas.", "serie politicas publica.", "serie policiaca publica.", "sobre politica publica."
"las politicas juan." » "las politica juan.", "las politicas diana.", "las politicas jaume."
"elite politico juan." » "elite politica juan.", "delito politico juan.", "elites politicas juan.", "elite politico en.", "elite politico la."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("las politicas juan.") or ("elite politico juan."))) or ("serie politica publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("las politicas juan.") OR ("elite politico juan."))) OR ("serie politica publica."))*.
• Removing quotes may allow a broader search: (((( las politicas juan. ) or ( elite politico juan. ))) or ( serie politica publica. ))*.