Perhaps you should try some spelling variations:
"basicas mathematics computer programs." » "basicas matematicas computer programs.", "business mathematics computer programs.", "basicas mathematics computer programa."
"basicas matematica carlo programas." » "basicas matematicas carlo programas.", "fisica matematica carlo programas.", "comicas matematicas carlo programas.", "basicas matematicos carlos programas.", "basicas matematica para programas.", "basicas matematica como programas.", "basicas matematica calculo programas.", "basicas matematica campo 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 matematica carlo programas.") or ("basicas mathematics computer programs."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("basicas matematica carlo programas.") OR ("basicas mathematics computer programs.")).
• Removing quotes may allow a broader search: (( basicas matematica carlo programas. ) or ( basicas mathematics computer programs. )).
• Adding a wildcard symbol may retrieve word variants: (("basicas matematica carlo programas.") or ("basicas mathematics computer programs."))*.