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