Perhaps you should try some spelling variations:
"serie policiaca publico." » "serie politica publica.", "serie politico publico.", "serie politica publicas."
"series political publico." » "series politica publica.", "series politico publico.", "series politicas publicas.", "series politicas publico.", "serie politicas publico.", "crises political publico."
"serie politica publico." » "serie politica publica.", "serie politico publico.", "serie politica publicas.", "serie politicas publico.", "sobre politica publico.", "elite politica publico."

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