Perhaps you should try some spelling variations:
"cientifica mexicana de anestesiologia ;" » "cientificas mexicano de anestesiologia ;", "cientificos mexicanos de anestesiologia ;", "cientifica merida 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: (("cientifica mexicana de anestesiologia ;") or ("politica medica de anestesiologia ;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("cientifica mexicana de anestesiologia ;") OR ("politica medica de anestesiologia ;")).
• Removing quotes may allow a broader search: (( cientifica mexicana de anestesiologia ; ) or ( politica medica de anestesiologia ; )).
• Adding a wildcard symbol may retrieve word variants: (("cientifica mexicana de anestesiologia ;") or ("politica medica de anestesiologia ;"))*.