Perhaps you should try some spelling variations:
"politico mexicano en medicina interna ;" » "politica mexicana en medicina interna ;", "politica mexico en medicina interna ;", "politicos mexico en medicina interna ;", "politico mexicanos en medicina interna ;", "politico mexicana en medicina interna ;", "politico mexico en medicina interna ;", "politico mexicano de medicina interna ;"
"politico mexicano la medicina interna ;" » "politica mexicana la medicina interna ;", "politica mexico la medicina interna ;", "politicos mexico la medicina interna ;", "politico mexicano de medicina interna ;", "politico mexico la medicina interna ;", "politico mexicano y medicina interna ;"

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: (("politico mexicano en medicina interna ;") OR ("politico mexicano la medicina interna ;"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"politico mexicano en medicina interna ;\") OR (\"politico mexicano la medicina interna ;\"))".
• Removing quotes may allow a broader search: (( politico mexicano en medicina interna ; ) OR ( politico mexicano la medicina interna ; )).
• Adding a wildcard symbol may retrieve word variants: (("politico mexicano en medicina interna ;") OR ("politico mexicano la medicina interna ;"))*.