Perhaps you should try some spelling variations:
"prensa mexicana del medicina moderna ;" » "prensa mexicana del medicina medicina ;", "poesia mexicana del medicina moderna ;", "prensa mexico del medicina moderna ;", "revista mexicana del medicina moderna ;", "prensa mexicano de medicina moderna ;", "prensa mexicana en medicina moderna ;", "prensa mexicanas de medicina moderna ;", "prensa mexicana del medicinar moderna ;", "prensa mexicana legal medicina moderna ;"
"cronica mexicana de medicina interna ;" » "botanica 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 de medicina interna ;") or ("prensa mexicana del medicina moderna ;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("cronica mexicana de medicina interna ;") OR ("prensa mexicana del medicina moderna ;")).
• Removing quotes may allow a broader search: (( cronica mexicana de medicina interna ; ) or ( prensa mexicana del medicina moderna ; )).
• Adding a wildcard symbol may retrieve word variants: (("cronica mexicana de medicina interna ;") or ("prensa mexicana del medicina moderna ;"))*.