Perhaps you should try some spelling variations:
"serie politicas publica." » "serie politicas publicad.", "serie politica publica.", "serie politica publicas.", "serie politicas publicada.", "serie politica publicaa.", "serie politica publicasa.", "serie policiaca publica."
"sobre politicas publicas." » "sobre politicas publicads.", "sobre politica publicas.", "sobre politica publicass.", "sobre politicas publicadas.", "sobre politica publicaas.", "sobre politica publicasas."
"sobre politicas public." » "sobre politicas publicad.", "sobre politica publica.", "sobre politica publicas.", "sobre politica 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 publica.") or ((("sobre politicas publicas.") OR ("sobre politicas public."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie politicas publica.") OR ((("sobre politicas publicas.") OR ("sobre politicas public.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"serie politicas publica.\") or (((\"sobre politicas publicas.\") OR (\"sobre politicas public.\"))))".
• Removing quotes may allow a broader search: (( serie politicas publica. ) or ((( sobre politicas publicas. ) OR ( sobre politicas public. )))).
• Adding a wildcard symbol may retrieve word variants: (("serie politicas publica.") or ((("sobre politicas publicas.") OR ("sobre politicas public."))))*.