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