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."
"basicas matematica tomo programs." » "basicas matematicas tomo programs.", "fisica matematica tomo programs.", "comicas matematicas tomo programs.", "basicas matematica como programs.", "basicas matematicas como programs.", "basicas matematica como programa.", "basicas matematica como programar."

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