Perhaps you should try some spelling variations:
"ciencias mathematics computer programming." » "ciencias mathematics computer programs.", "ciencias mathematics computer program.", "ciencias matematicas computer programming.", "sciences mathematics computer programming.", "financial mathematics computer programming."
"basicas matematicas do programa." » "comicas matematicas do programa.", "benditas matematicas do programa.", "fisica matematica do programa.", "basicas matematicas de programa.", "basicas matematicas con programa.", "basicas matematicas del programa.", "basicas matematicas o programa.", "basicas matematicas dos programas."

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