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)
"programaaas a codigo." » "programas y codigo." (Expand Search), "programaaas al codigo." (Expand Search), "programaaas el codigo." (Expand Search), "programaaaas a codigo." (Expand Search), "programasaaas a 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 (((\"programaaas a codigo.\") OR (\"programacion lineal codigo.\"))))~".
• Removing quotes may allow a broader search: (( program _ codigo. ) OR ((( programaaas a codigo. ) OR ( programacion lineal codigo. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("program _ codigo.") OR ((("programaaas a codigo.") OR ("programacion lineal codigo."))))*.