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