Perhaps you should try some spelling variations:
"serie ciencia mexicosl" » "serie ciencia mexico", "serie ciencia mexicana", "serie ciencia medieval", "serie ciencias mexicosl"
"arbor ciencia medicas" » "arbor ciencias medicas", "arbor ciencias medicass", "arbor ciencia mexicos", "arbor ciencia mexicanas", "arbol ciencia medicas"
"ariel ciencia medica" » "ariel ciencias medicas", "ariel ciencia mexico", "ariel ciencia mexicana", "arte 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 mexicosl") or ("arbor ciencia medicas"))) or ("ariel ciencia medica"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("serie ciencia mexicosl") OR ("arbor ciencia medicas"))) OR ("ariel ciencia medica")).
• Removing quotes may allow a broader search: (((( serie ciencia mexicosl ) or ( arbor ciencia medicas ))) or ( ariel ciencia medica )).
• Adding a wildcard symbol may retrieve word variants: (((("serie ciencia mexicosl") or ("arbor ciencia medicas"))) or ("ariel ciencia medica"))*.