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