Adam Herrman has been missing since disappearing in 1999 from a Towanda mobile home park where he lived with his adoptive parents.
Murphy says about 20 people and search dog teams took part in Saturday's search.
Doug and Valerie Herrman say their adoptive son ran away and they never reported it. But authorities discovered late last year that he was missing after his older adoptive sister went to them with concerns.
The sheriff says the next planned search of woods south of the mobile home park will be on Feb. 21.
(Copyright 2009 by The Associated Press. All Rights Reserved.)