good luckand good luck!
bite of luck
bad luckWhat awful bad luck.’
hard luck‘It's your hard luck if that's the kind of women you mix with.’
luck whenThere is always an element of luck when a club selects a manager.
pot luckUS takes pot luck on cancer risks
stroke of luckI also had a stroke of luck when a Jehovah's Witness called at the door earlier.
luck ranAfter that miss, United's luck ran out.