The two items I paid for never turned up at my place as it said in the tracking how do I find my parcels

Im writting you because my package didnt came.
And contact is china post.
Do you have any answer for me why i didnt get the package?
i buy the package on amazon.

My id: 655224789
Juš Dolničar

Thanks for answering my questions

My package as left the Shanghai international mail station and came back to the same place and it didnt move since may 02