Perhaps you should try some spelling variations:
"de matematicas computer programmers." » "de matematicas como programmers.", "de matematicas comics programmers.", "de matematicas computer programs.", "de matematicas computer 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: (("de matematicas computer programmers.") or ("basicas mathematics computer programa."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("de matematicas computer programmers.") OR ("basicas mathematics computer programa.")).
• Removing quotes may allow a broader search: (( de matematicas computer programmers. ) or ( basicas mathematics computer programa. )).
• Adding a wildcard symbol may retrieve word variants: (("de matematicas computer programmers.") or ("basicas mathematics computer programa."))*.