Usually you need to start out by confining them to a crate or an ex-pen. That's the only way I got it done. Worked on the rescues I got, too. Use the 'search' button at the top on the right hand side. There are lots of threads offering advice. Many have trouble with this issue. Not unheard of with Yorkies.
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Joanne

Eli

Chipper

Eva

Snowboy

Rosie(R.I.P. 1996-July 29, 2013)

Cocoa(R.I.P 1998-April 26, 2012):