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 matematica como program." » "ciencias matematicas como program.", "ciencia emblematica como program.", "ciencias mecanica como program.", "ciencias matematicas con program.", "ciencias matematica como programa.", "ciencias matematica como programar.", "ciencias matematica campo programa."

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (("ciencias matematica como program.") or ("basicas mathematics computer programming."))~.
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• Adding a wildcard symbol may retrieve word variants: (("ciencias matematica como program.") or ("basicas mathematics computer programming."))*.