Perhaps you should try some spelling variations:
"ciencias mathematics computer program." » "ciencias matematicas computer program.", "sciences mathematics computer program.", "financial mathematics computer program.", "ciencias mathematics computer programs."
"basicas matematicas web programming." » "comicas matematicas web programming.", "benditas matematicas web programming.", "fisica matematica web programming.", "basicas matematicas en programming.", "basicas matematicas de programming.", "basicas matematicas e programming.", "basicas matematicas web programacion."

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

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