Perhaps you should try some spelling variations:
"clinical medicine en anestesiologia ;" » "clinical medicine de anestesiologia ;", "clinical medicina en anestesiologia ;", "clinical medicinal en anestesiologia ;", "clinical medicine _ anestesiologia ;", "clinica medicine en anestesiologia ;"
"clinicas mexicanas en anestesiologia ;" » "clinicas mexicanas de anestesiologia ;", "clinicas mexicana en anestesiologia ;", "clinicas mexicanos en anestesiologia ;", "clinicas mexicano en 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: (("clinical medicine en anestesiologia ;") OR ("clinicas mexicanas en anestesiologia ;"))~.
• Removing quotes may allow a broader search: (( clinical medicine en anestesiologia ; ) or ( clinicas mexicanas en anestesiologia ; ))~.
• Adding a wildcard symbol may retrieve word variants: (("clinical medicine en anestesiologia ;") or ("clinicas mexicanas en anestesiologia ;"))*.