Perhaps you should try some spelling variations:
"cronicas mexicano de anestesiologia. ;" » "cronica mexicana de anestesiologia. ;", "cronicas americanas de anestesiologia. ;", "clinicas mexicanas de anestesiologia. ;", "cronicas mexicana de anestesiologia. ;"
"politicas mexico en anestesiologia. ;" » "politica mexico en anestesiologia. ;", "politicos mexico en anestesiologia. ;", "politics mexico en anestesiologia. ;"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("cronicas mexicano de anestesiologia. ;") OR ("politicas mexico en anestesiologia. ;"))~.
• Removing quotes may allow a broader search: (( cronicas mexicano de anestesiologia. ; ) or ( politicas mexico en anestesiologia. ; ))~.
• Adding a wildcard symbol may retrieve word variants: (("cronicas mexicano de anestesiologia. ;") or ("politicas mexico en anestesiologia. ;"))*.