Perhaps you should try some spelling variations:
"competencias genericas computer programa." » "competencias basicas computer programa.", "competencias matematicas computer programa.", "competencias genericas computer programs.", "competencias genericas computer program.", "competencias genericas computer programming."
"basicas mathematics computers programming." » "basicas mathematics computer programming.", "basicas mathematics popular programming.", "basicas mathematics competitions programming.", "basicas mathematics computer programs.", "basicas mathematics computer program.", "basicas matematicas computers programming.", "business mathematics computers programming."

Try widening your search to All Fields.

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