Perhaps you should try some spelling variations:
"programasa del codigo." » "programas del codigo." (Expand Search), "programas de codigo." (Expand Search), "programa del codigo." (Expand Search), "programaasa del codigo." (Expand Search), "programasasa del codigo." (Expand Search)
"program _ codigo." » "programa _ codigo." (Expand Search), "programas _ codigo." (Expand Search)
"programaas parallel codigo." » "programaaas parallel codigo." (Expand Search), "programasaas parallel codigo." (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"program _ codigo.\") OR (((\"programaas parallel codigo.\") OR (\"programasa del codigo.\"))))~".
• Removing quotes may allow a broader search: (( program _ codigo. ) OR ((( programaas parallel codigo. ) OR ( programasa del codigo. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("program _ codigo.") OR ((("programaas parallel codigo.") OR ("programasa del codigo."))))*.