Perhaps you should try some spelling variations:
"programaable plc codigo." » "programable plc codigo." (Expand Search), "programar plc codigo." (Expand Search), "programaable al codigo." (Expand Search), "programaable el codigo." (Expand Search), "programaaable plc codigo." (Expand Search), "programasaable plc codigo." (Expand Search)
"program _ codigo." » "programa _ codigo." (Expand Search), "programas _ codigo." (Expand Search)
"programasaadas parallel codigo." » "programaasaadas parallel codigo." (Expand Search), "programasasaadas parallel codigo." (Expand Search), "programadas parallel 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: (("program _ codigo.") OR ((("programasaadas parallel codigo.") OR ("programaable plc codigo."))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"program _ codigo.\") OR (((\"programasaadas parallel codigo.\") OR (\"programaable plc codigo.\"))))".
• Removing quotes may allow a broader search: (( program _ codigo. ) OR ((( programasaadas parallel codigo. ) OR ( programaable plc codigo. )))).
• Adding a wildcard symbol may retrieve word variants: (("program _ codigo.") OR ((("programasaadas parallel codigo.") OR ("programaable plc codigo."))))*.