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