Question about expired domains

[stockhola]

Hi I am new to this whole domain buying and selling thing but one part that gets me is when searching the domain shows up expired yet I can not buy it. Why is this ?

 

[alibaba]

Hi I am new to this whole domain buying and selling thing but one part that gets me is when searching the domain shows up expired yet I can not buy it. Why is this ?

expired does not mean dropped u need to wait till it drops or u may buy it from
its reistrar before