Perhaps you should try some spelling variations:
"chicas americanas de medicina interna ;" » "cronicas americanas de medicina interna ;", "cartas americanas de medicina interna ;", "chino americana de medicina interna ;", "chicas americanas del medicina interna ;", "chicas americana de medicina interna ;", "chicas americanos de medicina interna ;"
"cronica mexicana de medicina moderna ;" » "botanica mexicana de medicina moderna ;", "prensa mexicana de medicina moderna ;", "cronica mexicana de medicina medicina ;"

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: (("chicas americanas de medicina interna ;") OR ("cronica mexicana de medicina moderna ;"))~.
• Removing quotes may allow a broader search: (( chicas americanas de medicina interna ; ) or ( cronica mexicana de medicina moderna ; ))~.
• Adding a wildcard symbol may retrieve word variants: (("chicas americanas de medicina interna ;") or ("cronica mexicana de medicina moderna ;"))*.