It is the Document Search option provided to search through the homepage documents.
The administrator can search for a specific document by typing the title of the document in the Searchoption.
The user gets a navigation bar/ search bar on the platform homepage to search the desired documents.
Search option for the Platform documents
Insert the title of the document you want to search in the given space.
Click the Search icon.
All the available documents with the matching search term get displayed as Search Result. E.g., The following image displays documents containing the word newin their title: