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