Perhaps you should try some spelling variations:
"basicas mathematics computer programming." » "basicas mathematics computer programs.", "basicas mathematics computer program.", "basicas matematicas computer programming.", "business mathematics computer programming."
"ciencias matematicas como programa." » "benditas matematicas como programa.", "comicas matematicas como programa.", "competencias matematicas como programa.", "ciencias matematica como programa.", "ciencias matematicas con programa.", "ciencias matematica tomo programa.", "ciencias matematicas como problema."

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: (("basicas mathematics computer programming.") or ("ciencias matematicas como programa."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("basicas mathematics computer programming.") OR ("ciencias matematicas como programa.")).
• Removing quotes may allow a broader search: (( basicas mathematics computer programming. ) or ( ciencias matematicas como programa. )).
• Adding a wildcard symbol may retrieve word variants: (("basicas mathematics computer programming.") or ("ciencias matematicas como programa."))*.