Perhaps you should try some spelling variations:
"federal mexicanos en anestesiologia. ;" » "federal mexicano en anestesiologia. ;", "federal mexicana en anestesiologia. ;", "federal mexico en anestesiologia. ;", "federal mexicano de anestesiologia. ;"
"politica medica de anestesiologia. ;" » "politica america de anestesiologia. ;", "politica mexico de anestesiologia. ;", "practica medica de anestesiologia. ;", "politica medida de anestesiologia. ;", "politica media de anestesiologia. ;", "politica medicina de anestesiologia. ;"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("federal mexicanos en anestesiologia. ;") OR ("politica medica de anestesiologia. ;"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"federal mexicanos en anestesiologia. ;\") OR (\"politica medica de anestesiologia. ;\"))".
• Removing quotes may allow a broader search: (( federal mexicanos en anestesiologia. ; ) OR ( politica medica de anestesiologia. ; )).
• Adding a wildcard symbol may retrieve word variants: (("federal mexicanos en anestesiologia. ;") OR ("politica medica de anestesiologia. ;"))*.