Perhaps you should try some spelling variations:
"ensenar matematicas computer program." » "ensenar mathematics computer program.", "ensenar matematicas como program.", "ensenar matematicas comics program.", "ensenanza matematicas computer program.", "ensenar matematicas computer programs."
"basicas matematicas logic programming." » "comicas matematicas logic programming.", "benditas matematicas logic programming.", "fisica matematica logic programming.", "basicas matematica logica programming.", "basicas mathematics logic programming.", "basicas matematicas comics programming."

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

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