Perhaps you should try some spelling variations:
"elite politico mexicano." » "elite politica mexicana.", "elite politica mexico.", "elite politicos mexico.", "elite politica mexicano.", "delito politico mexicano.", "elites politicas mexicano."
"sobre politicas publica." » "sobre politicas publicas.", "sobre politicas publicad.", "sobre politica publicas.", "serie politicas publica."
"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 publica."))) or ("elite politico mexicano."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sobre politica publica.") OR ("sobre politicas publica."))) OR ("elite politico mexicano."))*.
• Removing quotes may allow a broader search: (((( sobre politica publica. ) or ( sobre politicas publica. ))) or ( elite politico mexicano. ))*.