Perhaps you should try some spelling variations:
"serie politica publica." » "serie politicas publicas.", "serie politicas publica.", "serie policiaca publica.", "sobre politica publica."
"las politicas diana." » "las politica diana.", "las politicas espana.", "las politica indiana."
"elites politica juan." » "elites politicas juan.", "elite politica juan.", "elite politico juan.", "elites politico juan.", "elites politica a.", "elites politica jose."

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