Perhaps you should try some spelling variations:
"ciencias matematicas computer programmers." » "benditas matematicas computer programmers.", "comicas matematicas computer programmers.", "competencias matematicas computer programmers.", "ciencias mathematics computer programmers.", "ciencias matematicas como programmers.", "ciencias matematicas comics programmers.", "ciencias matematicas computer programs.", "ciencias matematicas computer programming.", "ciencias matematicas computers programming."
"basicas mathematics logic programming." » "basicas matematicas logic programming.", "business mathematics logic programming.", "basicas matematica logica programming."

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

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