Perhaps you should try some spelling variations:
"clinicas mexicano de anestesiologia ;" » "clinicas mexicanas de anestesiologia ;", "clinical medicine de anestesiologia ;", "clinica medica de anestesiologia ;", "clinicas mexicana de anestesiologia ;"
"politica medida de anestesiologia ;" » "politica mediada de anestesiologia ;", "politica medica de anestesiologia ;", "politica medieval de anestesiologia ;", "politica medidas de anestesiologia ;", "politica perdida de anestesiologia ;", "politica medios 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 mexicano de anestesiologia ;") or ("politica medida de anestesiologia ;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("clinicas mexicano de anestesiologia ;") OR ("politica medida de anestesiologia ;")).
• Removing quotes may allow a broader search: (( clinicas mexicano de anestesiologia ; ) or ( politica medida de anestesiologia ; )).
• Adding a wildcard symbol may retrieve word variants: (("clinicas mexicano de anestesiologia ;") or ("politica medida de anestesiologia ;"))*.