Perhaps you should try some spelling variations:
"programacion del codigo." » "programacion de codigo." (Expand Search), "programacion en codigo." (Expand Search), "programacion para codigo." (Expand Search)
"cooperacion a codigo." » "cooperacion y codigo." (Expand Search), "cooperation a codigo." (Expand Search), "cooperation _ codigo." (Expand Search), "cooperacion al codigo." (Expand Search), "cooperacion el codigo." (Expand Search)
"computation _ codigo." » "computacion _ codigo." (Expand Search), "computational _ codigo." (Expand Search), "competition _ codigo." (Expand Search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("computation _ codigo.") OR ("cooperacion a codigo."))) OR ("programacion del codigo."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"computation _ codigo.\") OR (\"cooperacion a codigo.\"))) OR (\"programacion del codigo.\"))".
• Removing quotes may allow a broader search: (((( computation _ codigo. ) OR ( cooperacion a codigo. ))) OR ( programacion del codigo. )).
• Adding a wildcard symbol may retrieve word variants: (((("computation _ codigo.") OR ("cooperacion a codigo."))) OR ("programacion del codigo."))*.