Perhaps you should try some spelling variations:
"programa parallel codigo." » "programa para codigo." (Expand Search)
"programacion en codigo." » "programacion de codigo." (Expand Search), "programacion el codigo." (Expand Search), "programacion del codigo." (Expand Search), "programacion al codigo." (Expand Search)
"problema dal codigo." » "problema del codigo." (Expand Search), "problema de codigo." (Expand Search), "problemas pbl codigo." (Expand Search), "problema al codigo." (Expand Search), "problema el 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 parallel codigo.\") OR (((\"problema dal codigo.\") OR (\"programacion en codigo.\"))))~".
• Removing quotes may allow a broader search: (( programa parallel codigo. ) OR ((( problema dal codigo. ) OR ( programacion en codigo. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("programa parallel codigo.") OR ((("problema dal codigo.") OR ("programacion en codigo."))))*.