Perhaps you should try some spelling variations:
"clase politica publico." » "clase politico publico.", "clase politica publicas.", "clase politicas publicad.", "class political publico.", "chile politica publico."
"serie politicas publicas." » "serie policiaca publicas.", "serie politicas public."
"entre politica publica." » "sobre politica publica."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("clase politica publico.") or ("entre politica publica."))) or ("serie politicas publicas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("clase politica publico.") OR ("entre politica publica."))) OR ("serie politicas publicas."))*.
• Removing quotes may allow a broader search: (((( clase politica publico. ) or ( entre politica publica. ))) or ( serie politicas publicas. ))*.