Perhaps you should try some spelling variations:
"cronicas alemania de medicina interna ;" » "cronicas alemanas de medicina interna ;", "cronicas alemana de medicina interna ;", "cronicas alemania y medicina interna ;"
"botanica mexicana de medical general ;" » "botanica mexicana de medicina general ;", "botanica mexicana de medicas general ;", "botanica mexicana de mexicali general ;", "botanica mexicana de medicago general ;"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("cronicas alemania de medicina interna ;") or ("botanica mexicana de medical general ;"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("cronicas alemania de medicina interna ;") OR ("botanica mexicana de medical general ;"))*.
• Removing quotes may allow a broader search: (( cronicas alemania de medicina interna ; ) or ( botanica mexicana de medical general ; ))*.