which times are going the long distance bus from shenzhen Luohu to dongxing

From Luohu Bus Station, there is no bus to reach Dongxing.
There is only one bus to reach there from Futian Bus Station at 19:50 and it takes about 13 hours on the way.
The ticket fare is around 260RMB.
To reach Futian Bus Station from Luohu, you can take the Luobao Line to reach Zhuzilin Station. Get out of the station from Exit B1, you can see that station.