Perhaps you should try some spelling variations:
"programa el codigo." » "programa del codigo." (Expand Search), "programas del codigo." (Expand Search), "programa la codigo." (Expand Search), "programa al codigo." (Expand Search)
"programa de codigo." » "programa del codigo." (Expand Search), "programa al codigo." (Expand Search)
"programa parallellel codigo." » "programa parallelldel codigo." (Expand Search), "programa parallellal codigo." (Expand Search), "programa paralleled codigo." (Expand Search), "programa parallella 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: "((\"programa de codigo.\") OR (((\"programa parallellel codigo.\") OR (\"programa el codigo.\"))))~".
• Removing quotes may allow a broader search: (( programa de codigo. ) OR ((( programa parallellel codigo. ) OR ( programa el codigo. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("programa de codigo.") OR ((("programa parallellel codigo.") OR ("programa el codigo."))))*.