Perhaps you should try some spelling variations:
"programa parallel codigo." » "programa para codigo." (Expand Search), "programa paralldel codigo." (Expand Search), "programa parallal codigo." (Expand Search)
"problemas el codigo." » "problemas en codigo." (Expand Search), "problemas pbl codigo." (Expand Search), "problemas de codigo." (Expand Search), "problemas del codigo." (Expand Search), "problemas al codigo." (Expand Search)
"programa a codigo." » "programa la codigo." (Expand Search), "programa de codigo." (Expand Search), "programa tv codigo." (Expand Search), "programa al codigo." (Expand Search)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"problemas el codigo.\") OR (((\"programa parallel codigo.\") OR (\"programa a codigo.\"))))~".
• Removing quotes may allow a broader search: (( problemas el codigo. ) OR ((( programa parallel codigo. ) OR ( programa a codigo. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("problemas el codigo.") OR ((("programa parallel codigo.") OR ("programa a codigo."))))*.