Perhaps you should try some spelling variations:
"programacion paralela codigo." » "programacion para codigo." (Expand Search), "programacion grafica codigo." (Expand Search)
"formacion del codigo." » "formacion de codigo." (Expand Search), "informacion de codigo." (Expand Search), "formacion y codigo." (Expand Search)
"programas de codigo." » "programa de codigo." (Expand Search), "problemas de codigo." (Expand Search), "programas al 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 de codigo.") OR ("formacion del codigo."))) OR ("programacion paralela codigo."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"programas de codigo.\") OR (\"formacion del codigo.\"))) OR (\"programacion paralela codigo.\"))".
• Removing quotes may allow a broader search: (((( programas de codigo. ) OR ( formacion del codigo. ))) OR ( programacion paralela codigo. )).
• Adding a wildcard symbol may retrieve word variants: (((("programas de codigo.") OR ("formacion del codigo."))) OR ("programacion paralela codigo."))*.