He tried to repair the engine but 'without success'. [=he was not able to repair the engine]
He will never 'succeed in' this business. [=he will never be successful in this business]
I am one of the diet clinic's 'success stories'. [=the diet clinic was able to help me]
(..) But we can give Frodo his chance if we keep Sauron's Eye fixed upon us. Keep him blind to all else that moves. A diversion. Certainty of death... ...small chance of success... ...what are we waiting for? Sauron will suspect a trap. He will not take the bait. Oh, I think he will. [SAURON SPEAKING (..)2003 The Lord of the Rings: The Return of the King