Perhaps you should try some spelling variations:
"politica mexicana de anestesiologia ;" » "politico mexicano de anestesiologia ;", "politica mexico de anestesiologia ;", "politica medica de anestesiologia ;"
"cronica mexicanas el anestesiologo ;" » "cronica mexicana el anestesiologo ;", "cronicas americanas el anestesiologo ;", "clinicas mexicanas el anestesiologo ;", "cronica mexicanas en anestesiologia ;", "cronica mexicanas la anestesiologia ;", "cronica mexicanas y anestesiologia ;", "cronica mexicanas del anestesiologo ;", "cronica mexicanas en anestesiologo ;"

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: (("politica mexicana de anestesiologia ;") OR ("cronica mexicanas el anestesiologo ;"))~.
• Removing quotes may allow a broader search: (( politica mexicana de anestesiologia ; ) or ( cronica mexicanas el anestesiologo ; ))~.
• Adding a wildcard symbol may retrieve word variants: (("politica mexicana de anestesiologia ;") or ("cronica mexicanas el anestesiologo ;"))*.