Perhaps you should try some spelling variations:
"sobre politica publicas." » "sobre politica publica.", "sobre politica publicaciones.", "sobre politicas publicas."
"serie politicas public." » "serie politicas publicad.", "serie politica publica.", "serie politicas pablo.", "serie policiaca public."
"serie politicas publicas." » "serie politicas publicadas.", "serie politica publicaas.", "serie politicas pabloas.", "serie policiaca publicas."

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 publicas."))) or ("serie politicas publicas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie politicas public.") OR ("sobre politica publicas."))) OR ("serie politicas publicas.")).
• Removing quotes may allow a broader search: (((( serie politicas public. ) or ( sobre politica publicas. ))) or ( serie politicas publicas. )).
• Adding a wildcard symbol may retrieve word variants: (((("serie politicas public.") or ("sobre politica publicas."))) or ("serie politicas publicas."))*.