Perhaps you should try some spelling variations:
"programaacion visual codigo." » "programacion visual codigo." (Expand Search), "programacion lineal codigo." (Expand Search), "programaaacion visual codigo." (Expand Search), "programasaacion visual codigo." (Expand Search)
"programadas dal codigo." » "programas del codigo." (Expand Search), "programadas del codigo." (Expand Search), "programadas al codigo." (Expand Search), "programadas el codigo." (Expand Search), "programaadas dal codigo." (Expand Search), "programasadas dal 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 (\"programadas dal codigo.\"))) OR (\"programaacion visual codigo.\"))~".
• Removing quotes may allow a broader search: (((( program _ codigo. ) OR ( programadas dal codigo. ))) OR ( programaacion visual codigo. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("program _ codigo.") OR ("programadas dal codigo."))) OR ("programaacion visual codigo."))*.