Perhaps you should try some spelling variations:
"basicas mathematics computer programas." » "business mathematics computer programas.", "basicas mathematics computer programs.", "basicas mathematics computer program.", "basicas mathematics computer programmers."
"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: (("basicas mathematics computer programas.") or ("basicas matematicas logic programming."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("basicas mathematics computer programas.") OR ("basicas matematicas logic programming.")).
• Removing quotes may allow a broader search: (( basicas mathematics computer programas. ) or ( basicas matematicas logic programming. )).
• Adding a wildcard symbol may retrieve word variants: (("basicas mathematics computer programas.") or ("basicas matematicas logic programming."))*.