Perhaps you should try some spelling variations:
"sobre politicas publicaa." » "sobre politicas publicas.", "sobre politicas publicad.", "sobre politica publica.", "sobre politicas publicasaa.", "sobre politicas publicadaa.", "sobre politica publicaaa."
"sobre politica publicaa." » "sobre politica publica.", "sobre politica publicas.", "sobre politicas publicas."
"serie politicas public." » "serie politicas publicas.", "serie politicas publicad.", "serie politica publica.", "serie policiaca public."

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