Perhaps you should try some spelling variations:
"ciencias matematicas en programa." » "benditas matematicas en programa.", "comicas matematicas en programa.", "competencias matematicas en programa.", "ciencias matematicas en programas.", "ciencias matematicas un programa.", "ciencias matematicas el programa."
"basicas mathematics computer programming." » "basicas mathematics computer programs.", "basicas mathematics computer program.", "basicas matematicas computer programming.", "business mathematics 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: (("ciencias matematicas en programa.") or ("basicas mathematics computer programming."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("ciencias matematicas en programa.") OR ("basicas mathematics computer programming.")).
• Removing quotes may allow a broader search: (( ciencias matematicas en programa. ) or ( basicas mathematics computer programming. )).
• Adding a wildcard symbol may retrieve word variants: (("ciencias matematicas en programa.") or ("basicas mathematics computer programming."))*.