Perhaps you should try some spelling variations:
"programable plc codigo." » "programar plc codigo." (Expand Search), "programable al codigo." (Expand Search), "programable el codigo." (Expand Search)
"programacion a codigo." » "programacion _ codigo." (Expand Search), "programacion de codigo." (Expand Search), "programacion en codigo." (Expand Search), "programacion al codigo." (Expand Search), "programacion el codigo." (Expand Search)
"problema dal codigo." » "problema del codigo." (Expand Search), "problema de codigo." (Expand Search), "problemas pbl codigo." (Expand Search), "problema al codigo." (Expand Search), "problema el 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: "((\"programacion a codigo.\") OR (((\"problema dal codigo.\") OR (\"programable plc codigo.\"))))~".
• Removing quotes may allow a broader search: (( programacion a codigo. ) OR ((( problema dal codigo. ) OR ( programable plc codigo. ))))~.
• Adding a wildcard symbol may retrieve word variants: (("programacion a codigo.") OR ((("problema dal codigo.") OR ("programable plc codigo."))))*.