Perhaps you should try some spelling variations:
"programacion lineal codigo." » "programacion visual codigo." (Expand Search), "programaacion lineal codigo." (Expand Search), "programasacion lineal codigo." (Expand Search)
"programacion del codigo." » "programacion de codigo." (Expand Search), "programacion en codigo." (Expand Search), "programacion para codigo." (Expand Search), "programaacion del codigo." (Expand Search), "programasacion del 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.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("program _ codigo.") OR ("programacion del codigo."))) OR ("programacion lineal codigo."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"program _ codigo.\") OR (\"programacion del codigo.\"))) OR (\"programacion lineal codigo.\"))*".
• Removing quotes may allow a broader search: (((( program _ codigo. ) OR ( programacion del codigo. ))) OR ( programacion lineal codigo. ))*.