i need a bus to go from Zhuhai to Lianyungang (Zhejiang/Jiangsu Province)

No direct long-distance bus runs between these two cities.
You are suggested to take shuttle bus at Gongbei Port and go to Guangzhou Baiyun Airport first. It takes around 3 hours on the way. The bus schedules are from 05:00 to 19:30 at intervals of 30 mins. Then take the direct flight to Lianyungang. The duration is no more than 2 hours.