Perhaps you should try some spelling variations:
"clinicas mexicanos en anestesiologia ;" » "clinicas mexicanas en anestesiologia ;", "clinicas mexicanos de anestesiologia ;", "clinicas mexicano de anestesiologia ;"
"politica mexicana en anestesiologia ;" » "politica mexicana de anestesiologia ;", "politico mexicano en anestesiologia ;", "politica mexico en anestesiologia ;", "politica medica en anestesiologia ;"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("clinicas mexicanos en anestesiologia ;") or ("politica mexicana en anestesiologia ;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("clinicas mexicanos en anestesiologia ;") OR ("politica mexicana en anestesiologia ;")).
• Removing quotes may allow a broader search: (( clinicas mexicanos en anestesiologia ; ) or ( politica mexicana en anestesiologia ; )).
• Adding a wildcard symbol may retrieve word variants: (("clinicas mexicanos en anestesiologia ;") or ("politica mexicana en anestesiologia ;"))*.