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