Perhaps you should try some spelling variations:
"elite politica publicas." » "elite politicas publicas.", "elite politica publica.", "elite politica publicaciones.", "elites politicas publicas.", "entre politica publicas.", "chile politica publicas."
"etica politica publicas." » "etica politicas publicas.", "etica politica publica.", "etica politica publicaciones.", "publica politica publicas."
"serie oficial publico." » "serie fichas publico."

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 oficial publico.") or ((("elite politica publicas.") OR ("etica politica publicas."))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("serie oficial publico.") OR ((("elite politica publicas.") OR ("etica politica publicas.")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"serie oficial publico.\") or (((\"elite politica publicas.\") OR (\"etica politica publicas.\"))))".
• Removing quotes may allow a broader search: (( serie oficial publico. ) or ((( elite politica publicas. ) OR ( etica politica publicas. )))).
• Adding a wildcard symbol may retrieve word variants: (("serie oficial publico.") or ((("elite politica publicas.") OR ("etica politica publicas."))))*.