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

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: (("elite politico juan.") or ((("serie politica publica.") OR ("serie policiaca publica."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("elite politico juan.") OR ((("serie politica publica.") OR ("serie policiaca publica.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"elite politico juan.\") or (((\"serie politica publica.\") OR (\"serie policiaca publica.\"))))".
• Removing quotes may allow a broader search: (( elite politico juan. ) or ((( serie politica publica. ) OR ( serie policiaca publica. )))).
• Adding a wildcard symbol may retrieve word variants: (("elite politico juan.") or ((("serie politica publica.") OR ("serie policiaca publica."))))*.