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