Perhaps you should try some spelling variations:
"programas parallel codigo." » "programas para codigo." (Expand Search), "programaas parallel codigo." (Expand Search)
"programaasa de codigo." » "programas de codigo." (Expand Search), "programa de codigo." (Expand Search), "programas del codigo." (Expand Search), "programaasa del codigo." (Expand Search), "programaasa al codigo." (Expand Search), "programaaasa de codigo." (Expand Search)
"program _ codigo." » "programa _ 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 (((\"programas parallel codigo.\") OR (\"programaasa de codigo.\"))))~".
• Removing quotes may allow a broader search: (( program _ codigo. ) OR ((( programas parallel codigo. ) OR ( programaasa de codigo. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("program _ codigo.") OR ((("programas parallel codigo.") OR ("programaasa de codigo."))))*.