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