Perhaps you should try some spelling variations:
"clinicas mexicana de medicina interna ;" » "clinicas mexicanas de medicina interna ;", "cronica mexicana de medicina interna ;", "climatica mexicana de medicina interna ;"
"clinicas mexicana la medicina interna ;" » "clinicas mexicanas la medicina interna ;", "cronica mexicana la medicina interna ;", "climatica mexicana la medicina interna ;", "clinicas mexicana a medicina interna ;", "clinicas mexicano la medicina interna ;", "clinicas mexicana una medicina interna ;"

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 mexicana de medicina interna ;") or ("clinicas mexicana la medicina interna ;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("clinicas mexicana de medicina interna ;") OR ("clinicas mexicana la medicina interna ;")).
• Removing quotes may allow a broader search: (( clinicas mexicana de medicina interna ; ) or ( clinicas mexicana la medicina interna ; )).
• Adding a wildcard symbol may retrieve word variants: (("clinicas mexicana de medicina interna ;") or ("clinicas mexicana la medicina interna ;"))*.