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