How can i add criteria in a report?

How can i add criteria in a report?

I got this line in the following documentation 

Link -  " For example, you can make sure that certain reports can be accessed only by the admin user (application owner) by adding the following criteria to your report:

show all rows from <form_name> [<email_field_name>l == zoho.adminuserid]"

How can I add criteria in a report, by specifying who can see this report?