Perhaps you should try some spelling variations:
"sobre politicas publicad." » "sobre politicas publicas.", "sobre politica publicas.", "sobre politicos republica.", "serie politicas publicad."
"elite politica mexicana." » "elite politico mexicano.", "elite politica mexico.", "elite politica medica.", "elites politicas mexicana.", "etica politica mexicana.", "entre politica mexicana."
"sobre politica publica." » "sobre politicas publicas."

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