Perhaps you should try some spelling variations:
"programacion paralela codigo." » "programacion para codigo." (Expand Search), "programacion grafica 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)
"programas _ codigo." » "programa _ codigo." (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("programas _ codigo.") OR ("programacion en codigo."))) OR ("programacion paralela codigo."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"programas _ codigo.\") OR (\"programacion en codigo.\"))) OR (\"programacion paralela codigo.\"))".
• Removing quotes may allow a broader search: (((( programas _ codigo. ) OR ( programacion en codigo. ))) OR ( programacion paralela codigo. )).
• Adding a wildcard symbol may retrieve word variants: (((("programas _ codigo.") OR ("programacion en codigo."))) OR ("programacion paralela codigo."))*.