Can someone tell me how to implement find methods containing nomatch in ADO. your ideas would be very helpful for me.

They are implemented exactly as in DAO.

You invoke the .Find method of a recordset (I believe only one condition can be specified), and if the record is not found, .NoMatch will be True, as will .EOF.

Is this not how it is working for you?
What Access behavior has brought you to ask this question?