how can i go to zhong hai jin sha wan from zhujiang new town by bus

There is no bus to get to Zhong Hai Jin Sha Wan from the Zhujiang New Town, so you may try to use the subway + taxi method, OK?
If it is accepted, you can take the subway line 5 from Zhujiang New Town to Ouzhuang Station, where you can change to line 6 to get to Shabei Station. From there, you can take a taxi to the Zhong Hai Jin Sha Wan.