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