Perhaps you should try some spelling variations:
"cronicas mexicanas en anestesiologia. ;" » "cronicas americanas en anestesiologia. ;", "clinicas mexicanas en anestesiologia. ;", "cronica mexicana en anestesiologia. ;", "cronicas mexicanas de anestesiologia. ;", "cronicas mexicanos en anestesiologia. ;", "cronicas mexicano en anestesiologia. ;"
"clinicas mexicana en anestesiologia. ;" » "clinicas mexicanas en anestesiologia. ;", "cronica mexicana en anestesiologia. ;", "climatica mexicana en anestesiologia. ;", "clinicas mexicana de anestesiologia. ;"

Try widening your search to All Fields.

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

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