Perhaps you should try some spelling variations:
"cronicas americana de anestesiologia ;" » "cronicas americanas de anestesiologia ;", "cronica mexicana de anestesiologia ;", "critica americana de anestesiologia ;", "cronicas america de anestesiologia ;", "cronicas america del anestesiologia ;"
"prensa mexicana de anestesiologia ;" » "poesia mexicana de anestesiologia ;", "prensa mexico de anestesiologia ;", "revista mexicana 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: (("prensa mexicana de anestesiologia ;") or ("cronicas americana de anestesiologia ;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("prensa mexicana de anestesiologia ;") OR ("cronicas americana de anestesiologia ;")).
• Removing quotes may allow a broader search: (( prensa mexicana de anestesiologia ; ) or ( cronicas americana de anestesiologia ; )).
• Adding a wildcard symbol may retrieve word variants: (("prensa mexicana de anestesiologia ;") or ("cronicas americana de anestesiologia ;"))*.