This feature is currently in walk.
You can now use additional hash values to improve review efficiency by identifying duplicate documents to avoid redundant document review and perform quality control on tag consistency. New document hash values are now available to help you search, view, and export duplicate documents. Hashes are searchable using Search Builder or using search term syntax in the search bar. Multiple DISCO hashes are searchable at once using an aggregate search syntax. Also, hashes can be produced and added to custom views and Document List Export.
See the DISCO Review search manual for search syntax examples.