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