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

You may be able to get more results by adjusting your search query.

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