Perhaps you should try some spelling variations:
climatica mexicana » politica mexicana, climatico mexico, latina mexicana
clinicas mexicana » clinicas mexicanas, clinical medicine, politica mexicana
cronica mexicana » botanica mexicana, prensa mexicana
en medicina » de medicina, la medicina
interna » internet

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((clinicas mexicana) OR (climatica mexicana))) or (cronica mexicana)) en medicina interna ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((clinicas mexicana) OR (climatica mexicana))) OR (cronica mexicana)) en medicina interna ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((clinicas mexicana) OR (climatica mexicana))) or (cronica mexicana)) en medicina interna ;".
• Adding a wildcard symbol may retrieve word variants: ((((clinicas mexicana) OR (climatica mexicana))) or (cronica mexicana)) en medicina interna ;*.