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 matematica web programming." » "basicas matematicas web programming.", "fisica matematica web programming.", "comicas matematicas web programming.", "basicas matematica web programacion.", "basicas matematica en programming.", "basicas matematica de programming.", "basicas matematica del 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 mathematics computer program.") or ("basicas matematica web programming."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("ciencias mathematics computer program.") OR ("basicas matematica web programming.")).
• Removing quotes may allow a broader search: (( ciencias mathematics computer program. ) or ( basicas matematica web programming. )).
• Adding a wildcard symbol may retrieve word variants: (("ciencias mathematics computer program.") or ("basicas matematica web programming."))*.