Perhaps you should try some spelling variations:
"clinical mexicanas de medicina interna ;" » "clinicas mexicanas de medicina interna ;", "clinical medicine de medicina interna ;", "clinical mexicana de medicina interna ;", "clinical mexicano de medicina interna ;", "clinical mexicana en medicina interna ;"
"cientificas mexico de medicina interna ;" » "cientificos mexico de medicina interna ;", "cientificas mexicano de medicina interna ;", "cientificas america de medicina interna ;"

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: (("clinical mexicanas de medicina interna ;") OR ("cientificas mexico de medicina interna ;"))~.
• Removing quotes may allow a broader search: (( clinical mexicanas de medicina interna ; ) or ( cientificas mexico de medicina interna ; ))~.
• Adding a wildcard symbol may retrieve word variants: (("clinical mexicanas de medicina interna ;") or ("cientificas mexico de medicina interna ;"))*.