Perhaps you should try some spelling variations:
"elites politicas public." » "limites politicos public.", "las politicas public.", "ideas politicas public.", "elites politicas publicad.", "elites politica publica.", "elites politica publicas."
"serie politicas publicas." » "serie politicas publicadas.", "serie politica publicaas.", "serie politica publicasas.", "serie policiaca publicas.", "serie politicas publica.", "serie politicas publico."
"sobre politica public." » "sobre politica publica.", "sobre politica publicas.", "sobre politico publico.", "sobre politicas 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: (((("sobre politica public.") or ("elites politicas public."))) or ("serie politicas publicas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sobre politica public.") OR ("elites politicas public."))) OR ("serie politicas publicas.")).
• Removing quotes may allow a broader search: (((( sobre politica public. ) or ( elites politicas public. ))) or ( serie politicas publicas. )).
• Adding a wildcard symbol may retrieve word variants: (((("sobre politica public.") or ("elites politicas public."))) or ("serie politicas publicas."))*.