Perhaps you should try some spelling variations:
"plastica mexicana en anestesiologia ;" » "politica mexicana en anestesiologia ;", "latina mexicana en anestesiologia ;", "plata mexicana en anestesiologia ;", "plastica mexicana de anestesiologia ;"
"politica medica en anestesiologia ;" » "politica medica de anestesiologia ;", "politica america en anestesiologia ;", "politica mexico en anestesiologia ;", "practica medica en anestesiologia ;", "politica media en anestesiologia ;", "politica medicina 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: (("plastica mexicana en anestesiologia ;") or ("politica medica en anestesiologia ;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("plastica mexicana en anestesiologia ;") OR ("politica medica en anestesiologia ;")).
• Removing quotes may allow a broader search: (( plastica mexicana en anestesiologia ; ) or ( politica medica en anestesiologia ; )).
• Adding a wildcard symbol may retrieve word variants: (("plastica mexicana en anestesiologia ;") or ("politica medica en anestesiologia ;"))*.