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