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