Tech Doc : Search window - "Latest Released", "All Released Docs" & "Current revision docs"

Hi Team,

In the Technical document Search window, need to see "Latest Released", "All Released Docs" & "Current revision docs".

Currently there is no way to see previous released revision by using drop-down function “Current, Latest, Released, Effective as all of them works in relation to date field.

Can anyone explain how these functionalities are working and how to see "Latest Released", "All Released Docs" & "Current revision docs"?

Kindly help.

Thanks,

Sowmya