Perhaps you should try some spelling variations:
"la matematica computers programming." » "la matematica computer programming.", "la matematica computer programs.", "la matematica computer program.", "las matematicas computers programming.", "de matematicas computers programming."
"basicas mathematics computer programa." » "basicas matematicas computer programa.", "business mathematics computer programa.", "basicas mathematics computer programs.", "basicas mathematics computer program.", "basicas mathematics computer programming."

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