In the Documents and eTMF modules in Nucleus there is a search bar to search for the file you wish to view.
In the example below, a search for change shows results based on the term density within the files showing in the search results.
You can toggle the view between list and icon views, search A-Z order (default), Newest First, Oldest First and filter your results by File type, Owner, Date modified and search for Tags to narrow down the file results opposite:
The more tags that are added to files, the more that you will differentiate them in the search results. See the article Document Tags below for more details about tagging files.
Recommended: Document Tags