Perhaps you should try some spelling variations:
"cronica mexicanas la medicina interna ;" » "cronicas americanas la medicina interna ;", "clinicas mexicanas la medicina interna ;", "botanica mexicanas la medicina interna ;", "prensa mexicanas la medicina interna ;", "cronica mexicana la medicina interna ;", "cronica mexicans la medicina interna ;", "cronica americanas la medicina interna ;", "cronica mexicanas de medicina interna ;"
"cronica mexicana en medicina interna ;" » "botanica mexicana en medicina interna ;", "prensa mexicana en medicina interna ;", "cronica mexicana de medicina interna ;"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("cronica mexicana en medicina interna ;") or ("cronica mexicanas la medicina interna ;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("cronica mexicana en medicina interna ;") OR ("cronica mexicanas la medicina interna ;")).
• Removing quotes may allow a broader search: (( cronica mexicana en medicina interna ; ) or ( cronica mexicanas la medicina interna ; )).
• Adding a wildcard symbol may retrieve word variants: (("cronica mexicana en medicina interna ;") or ("cronica mexicanas la medicina interna ;"))*.