Perhaps you should try some spelling variations:
"clinicas mexicanas la medicina interna ;" » "cronica mexicanas la medicina interna ;", "climatica mexicanas la medicina interna ;", "clinical medicines la medicina interna ;", "clinicas mexicana la medicina interna ;", "clinicas mexicans la medicina interna ;", "clinicas americanas la medicina interna ;", "clinicas mexicanas de medicina interna ;", "clinicas mexicanas ly medicina interna ;", "clinicas mexicanas l2 medicina interna ;", "clinicas mexicanas l4 medicina interna ;"
"clinicas mexicana a medicina interna ;" » "cronica mexicana a medicina interna ;", "climatica mexicana a medicina interna ;", "clinical medicine a medicina interna ;", "clinicas mexicana _ medicina interna ;", "clinicas mexicana y medicina interna ;", "clinicas mexicana una medicina interna ;", "clinicas mexicana 2 medicina interna ;", "clinicas mexicana 4 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 mexicanas la medicina interna ;") or ("clinicas mexicana a medicina interna ;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("clinicas mexicanas la medicina interna ;") OR ("clinicas mexicana a medicina interna ;")).
• Removing quotes may allow a broader search: (( clinicas mexicanas la medicina interna ; ) or ( clinicas mexicana a medicina interna ; )).
• Adding a wildcard symbol may retrieve word variants: (("clinicas mexicanas la medicina interna ;") or ("clinicas mexicana a medicina interna ;"))*.