Perhaps you should try some spelling variations:
"sobre politica publicaa." » "sobre politica publicas.", "sobre politicas publicas.", "sobre politicas publicad.", "sobre politicas publicasa.", "sobre politicas publicaa."
"series politicas public." » "serie politicas public.", "series political public.", "serie politica public.", "series politicas publicas.", "series politicas publicad.", "series politica publicas."
"sobre politica publica." » "sobre politicas publicas.", "sobre politicas publica."

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