Perhaps you should try some spelling variations:
"ensenar matematicas computer programa." » "ensenar mathematics computer programa.", "ensenar matematicas como programa.", "ensenar matematicas comics programa.", "ensenanza matematicas computer programa.", "ensenar matematicas computer programs.", "ensenar matematicas computer program.", "ensenar matematicas computer programming."
"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.

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