Perhaps you should try some spelling variations:
"sciences mathematics computer programming." » "science mathematics computer programming.", "sequences mathematics computer programming.", "science mathematical computer programming.", "sciences mathematics computer programs.", "sciences mathematics computer program."
"basicas matematica como programa." » "basicas matematicas como programa.", "fisica matematica como programa.", "comicas matematicas como programa.", "basicas matematicas con programa.", "basicas matematica como problema."

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