The QuickSearch, Modules and Find all References windows allow very effective navigation in large projects.
The module names are also displayed before the rows found.
Unfortunately the column is too narrow. If the names are longer, e.g. if the first 10 characters of the name are the same due to naming conventions, it is no longer possible to distinguish to which module the line belongs.
This is not a bug.
The column width is fixed so it must be cut at some point. Note that hovering over the module name will show the complete name in the tool tip.