"My parents will shep nachas when they come to the ballet recital and see their granddaughter perform. " (JPS)
"Could a parent reasonably shep naches from a mazik? You remember that one of the things that a mazik can be is a precocious and mischievous child. " (source)
"The story is very kheynevdik (cute) and Finelli's fammily should shep nachas (derive pleasure) from her efforts." (source)