Perhaps you should try some spelling variations:
"programas a codigo." » "programas y codigo." (Expand Search), "programas de codigo." (Expand Search), "programa la codigo." (Expand Search), "programas al codigo." (Expand Search), "programas el codigo." (Expand Search), "programaas a codigo." (Expand Search)
"program _ codigo." » "programa _ codigo." (Expand Search)
"programaaada parallel codigo." » "programaaaada parallel codigo." (Expand Search), "programada parallel codigo." (Expand Search), "programadas parallel codigo." (Expand Search), "programado 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 (((\"programaaada parallel codigo.\") OR (\"programas a codigo.\"))))~".
• Removing quotes may allow a broader search: (( program _ codigo. ) OR ((( programaaada parallel codigo. ) OR ( programas a codigo. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("program _ codigo.") OR ((("programaaada parallel codigo.") OR ("programas a codigo."))))*.