certified

is there any module or plugin for certificate course created?

Sorry, but I don't understand what you need. Can you explain?

sorry, is that I am using google translator due to my lack of fluency in English. I wonder if there is any plugin capable of issuing certificate of completion. Type the person completes the course and in the end she can print a diploma.

In Moodle, you have the certificate module (non stantard)
Joomdle offers "my certificates" module, that lists all user certificates.