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