Perhaps you should try some spelling variations:
"programacion paralelal codigo." » "programacion paralela codigo." (Expand Search), "programacion para codigo." (Expand Search), "programaacion paralelal codigo." (Expand Search), "programasacion paralelal codigo." (Expand Search)
"programaaas a codigo." » "programas y codigo." (Expand Search), "programaaas al codigo." (Expand Search), "programaaas el codigo." (Expand Search), "programaaaas a codigo." (Expand Search), "programasaaas a codigo." (Expand Search)
"program _ codigo." » "programa _ codigo." (Expand Search), "programas _ 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: (((("program _ codigo.") OR ("programacion paralelal codigo."))) OR ("programaaas a codigo."))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"program _ codigo.\") OR (\"programacion paralelal codigo.\"))) OR (\"programaaas a codigo.\"))".
• Removing quotes may allow a broader search: (((( program _ codigo. ) OR ( programacion paralelal codigo. ))) OR ( programaaas a codigo. )).
• Adding a wildcard symbol may retrieve word variants: (((("program _ codigo.") OR ("programacion paralelal codigo."))) OR ("programaaas a codigo."))*.