Perhaps you should try some spelling variations:
"serie politicas publicass." » "serie politicas publicas.", "serie politica publicas.", "serie politicas publicad.", "serie policiaca publicass."
"sobre politica publica." » "sobre politicas publicas.", "sobre politicas publica."
"serie oficial public." » "serie oficial publico.", "serie oficiales publicos.", "serie oficios publicos.", "serie fichas public."

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 publicass.") or ("sobre politica publica."))) or ("serie oficial public."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie politicas publicass.") OR ("sobre politica publica."))) OR ("serie oficial public."))*.
• Removing quotes may allow a broader search: (((( serie politicas publicass. ) or ( sobre politica publica. ))) or ( serie oficial public. ))*.