Perhaps you should try some spelling variations:
"programacion lineal codigo." » "programacion visual codigo." (Expand Search), "programacion del codigo." (Expand Search), "programaacion lineal codigo." (Expand Search), "programasacion lineal codigo." (Expand Search)
"program _ codigo." » "programa _ codigo." (Expand Search), "programas _ codigo." (Expand Search)
"programaaaaticas del codigo." » "programaaaaaticas del codigo." (Expand Search), "programasaaaaticas del codigo." (Expand Search), "programaticas del codigo." (Expand Search), "programaticos del codigo." (Expand Search), "programatica del 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 lineal codigo.\"))) OR (\"programaaaaticas del codigo.\"))~".
• Removing quotes may allow a broader search: (((( program _ codigo. ) OR ( programacion lineal codigo. ))) OR ( programaaaaticas del codigo. ))~.
• Adding a wildcard symbol may retrieve word variants: (((("program _ codigo.") OR ("programacion lineal codigo."))) OR ("programaaaaticas del codigo."))*.