SOCHI, Russia — Julie Chu remembers watching the U.S. Olympic women’s hockey team win the gold medal at the Nagano Games in 1998, when she was in high school.It would have been hard to believe that she would play for Team USA at the next four Winter Games.It would have been even harder to believe that the Americans would still be searching for their second gold medal 16 years later.“I’ve been fortunate to be able to play in three past Olympics,” Chu said on Wednesday, a day before the United States will play Canada for the Olympic gold medal for the fourth time in five Winter Games. “But it’s not time to think about what happened in the past or, for the younger players, what’s going to happen in the future.”Four years after losing to Canada in the gold medal game, the U.S. forward is getting another chance — her fourth chance — at her first gold medal. She won silver in Salt Lake City, bronze in Turin and silver again in Vancouver.Each time, the Canadians won the gold.