Perhaps you should try some spelling variations:
"financial mathematics computer programmers." » "financial mathematics computer programs.", "financial mathematics computers programming.", "financial mathematics computer program."
"basicas matematicas computer programming." » "basicas matematicas como programming.", "basicas matematicas comics programming.", "basicas matematicas computer programs.", "basicas matematicas computer program.", "comicas matematicas computer programming.", "benditas matematicas computer programming.", "fisica matematica computer programming."

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