Perhaps you should try some spelling variations:
"serie ciencia mexicana" » "serie ciencia medicas", "serie ciencia mexico", "serie poesia mexicana", "serie ciencias mexicana"
"arte ciencia medieval" » "arte valencia medieval", "arte ciencia medicas", "arte francia medieval", "artes ciencias medieval", "arbor ciencia medieval", "entre ciencia medieval"
"ariel ciencia medica" » "ariel ciencia medicas", "ariel ciencias medicas", "ariel ciencia mexico", "arbor ciencia medica"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("serie ciencia mexicana") or ("arte ciencia medieval"))) or ("ariel ciencia medica"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie ciencia mexicana") OR ("arte ciencia medieval"))) OR ("ariel ciencia medica")).
• Removing quotes may allow a broader search: (((( serie ciencia mexicana ) or ( arte ciencia medieval ))) or ( ariel ciencia medica )).
• Adding a wildcard symbol may retrieve word variants: (((("serie ciencia mexicana") or ("arte ciencia medieval"))) or ("ariel ciencia medica"))*.