Perhaps you should try some spelling variations:
"serie politica publicas." » "serie politicas publicas.", "serie politica publica.", "serie politica publicaciones.", "serie policiaca publicas.", "sobre politica publicas."
"series political publico." » "series politica publica.", "series politicas publicas.", "series politicas publicad.", "series politicas publico.", "serie politicas publico.", "crises political publico."
"serie politico publico." » "serie politica publica.", "serie politico republicano.", "serie politicos republica.", "serie politicas publico.", "series politicas publico.", "serie policiaca 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: (((("serie politico publico.") OR ("series political publico."))) or ("serie politica publicas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie politico publico.") OR ("series political publico."))) OR ("serie politica publicas.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"serie politico publico.\") OR (\"series political publico.\"))) or (\"serie politica publicas.\"))".
• Removing quotes may allow a broader search: (((( serie politico publico. ) OR ( series political publico. ))) or ( serie politica publicas. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie politico publico.") OR ("series political publico."))) or ("serie politica publicas."))*.