good luck, good fortune, flue, trematode, Flook, flowk, fortune, farlie, fickle finger of fate, flit, more...

intention, design, plan, purpose, strategy

one in million, unlikely, unprecedented, rare, uncommon, more...

intestinal, chinese, common, lucky, mere, human, statistical, large, pure, oriental, liver

only chance,   rare chance,   lucky accident,   beginner's luck,   winner by error,   lucky shot,   lucky hit,   unlikely success,   lucky guess,   unlikely miracle