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