Perhaps you should try some spelling variations:
"basicas matematicas como programas." » "comicas matematicas como programas.", "benditas matematicas como programas.", "fisica matematica como programas.", "basicas matematica como programas.", "basicas matematicas con programas.", "basicas matematica tomo programas.", "basicas matematicas como programa.", "basicas matematicas como programar.", "basicas matematicas carlo programas."
"business mathematics computer programs." » "business mathematics computer programa."

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