Perhaps you should try some spelling variations:
"clinicas mexicana en anestesiologia ;" » "clinicas mexicanas en anestesiologia ;", "cronica mexicana en anestesiologia ;", "climatica mexicana en anestesiologia ;", "clinicas mexicana 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.

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