Hi…
don’t forget about the “FIND” funtion.
this is separate from the search box you are typing in right now.
it’s the magnifying glass at the bottom of the project panel
https://helpx.adobe.com/premiere-pro/using/organizing-assets-project-panel.html
“Find assets matching criteria
For more detailed searches, you can locate any assets in your project that meet criteria you specify. For example, you can search for a video clip that has a certain word in its Name column and a phrase in its Comment column.
Do one of the following:
Click the Find icon at the bottom of the Project panel.
Select the Project panel, and press Ctrl + F (Windows), or Command + F (Mac OS).
In the Find dialog box, select the name of the columns to search from the menus under Column.
Select the appropriate operators from the menus under Operator.
Type in the characters you want to find in the specified columns in their respective Find What fields.
If you’re searching for two criteria simultaneously, do one of the following:
To find assets that match both criteria, select All from the Match menu.
To find assets that match either criteria, select Any from the Match menu.
Click Find.”
Alex Udell
Editing, Motion Graphics, and Visual FX