C++ Show only searched Files.

I would like to search and display assets in the content browser.
When I click the button, a new content browser should open and only display the assets.

FContentBrowserModule& ContentBrowserModule = FModuleManager::LoadModuleChecked<FContentBrowserModule>("ContentBrowser");
IContentBrowserSingleton& ContentBrowserSingleton = ContentBrowserModule.Get();

This command works:

ContentBrowserSingleton.SyncBrowserToAssets(NewDatas, false, true, "", true);

but other files and folders that are not searched for are also displayed. The files I am looking for are only selected. I just want to display the files I am looking for. How can I fill the search bar with my C ++? Or are there other options?