Perhaps you should try some spelling variations:
"cronica mexicana en anestesiologia ;" » "cronica mexicana de anestesiologia ;", "botanica mexicana en anestesiologia ;", "prensa mexicana en anestesiologia ;"
"climatico america en anestesiologia ;" » "climatico america de anestesiologia ;", "climatico mexico en anestesiologia ;", "latino america en anestesiologia ;", "politico america en anestesiologia ;", "climatico america del anestesiologia ;"

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

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