Perhaps you should try some spelling variations:
"series politicas publicad." » "series politicas publicas.", "series politica publicas.", "series politicos republica.", "serie politicas publicad.", "serie politica publicad.", "especies politicas publicad."
"sobre politica publica." » "sobre politicas publicas.", "sobre politicas publica."
"series political public." » "serie politicas public.", "serie politica public.", "crises political public.", "series politicas publicas.", "series politica publicas.", "series politico 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: (("sobre politica publica.") or ((("series political public.") or ("series politicas publicad."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("sobre politica publica.") OR ((("series political public.") OR ("series politicas publicad.")))).
• Removing quotes may allow a broader search: (( sobre politica publica. ) or ((( series political public. ) or ( series politicas publicad. )))).
• Adding a wildcard symbol may retrieve word variants: (("sobre politica publica.") or ((("series political public.") or ("series politicas publicad."))))*.