There are filters on the Your Saved Tags page that can help you find the Tag you're looking for more quickly. You can filter your tag list by Project and Campaign.
From the Dashboard, click on the List icon, then choose Tags.
This will bring you to the Your Saved Tags page. In the top-left corner of the screen, you can select which Project or Campaign you want to use as a filter.
The list of tag results will update and the filters will reflect how many campaigns or projects you've selected.