Perhaps you should try some spelling variations:
"computation del codigo." » "comparacion del codigo." (Expand Search), "computation _ codigo." (Expand Search)
"computacion a codigo." » "computacion y codigo." (Expand Search), "computation _ codigo." (Expand Search), "computacion foro codigo." (Expand Search), "computacion al codigo." (Expand Search), "computacion el codigo." (Expand Search)
"programas de codigo." » "programa de codigo." (Expand Search), "problemas de codigo." (Expand Search), "programas al 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: (((("computation del codigo.") OR ("computacion a codigo."))) OR ("programas de codigo."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"computation del codigo.\") OR (\"computacion a codigo.\"))) OR (\"programas de codigo.\"))".
• Removing quotes may allow a broader search: (((( computation del codigo. ) OR ( computacion a codigo. ))) OR ( programas de codigo. )).
• Adding a wildcard symbol may retrieve word variants: (((("computation del codigo.") OR ("computacion a codigo."))) OR ("programas de codigo."))*.