Perhaps you should try some spelling variations:
"basicas mathematics computer programas." » "basicas matematicas computer programas.", "business mathematics computer programas.", "basicas mathematics computer programs.", "basicas mathematics computer program.", "basicas mathematics computer programmers."
"basicas matematica como programa." » "basicas matematicas como programa.", "fisica matematica como programa.", "comicas matematicas como programa.", "basicas matematicas con programa.", "basicas matematica 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 matematica como programa.") or ("basicas mathematics computer programas."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("basicas matematica como programa.") OR ("basicas mathematics computer programas.")).
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• Adding a wildcard symbol may retrieve word variants: (("basicas matematica como programa.") or ("basicas mathematics computer programas."))*.