Perhaps you should try some spelling variations:
"sobre politica publica." » "sobre politicas publicas.", "sobre politicas publica."
"las politicas public." » "las politicas publicas.", "las politicas publicad.", "las politica publicas."
"etico politico julia." » "etica politica julia.", "mexico politica julia.", "mexico politics julia.", "etico politico la.", "etico politico luis.", "etico politico juan."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("etico politico julia.") or ("las politicas public."))) or ("sobre politica publica."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("etico politico julia.") OR ("las politicas public."))) OR ("sobre politica publica."))*.
• Removing quotes may allow a broader search: (((( etico politico julia. ) or ( las politicas public. ))) or ( sobre politica publica. ))*.