I'm not sure what you are asking is really possible with goto anything. When you select the tag it is the same as clicking the tag on the notebook sidebar so will show all notes with that tag. The notes sidebar search is really the one designed for the searching you describe.
One possibility (if toggling the sidebar with F11 is not a workflow option for you) is that you could embed your tags within your documents. For example you could use inline tags plugin to make life easier to add the tags to a footer segment or something then in goto anything you can type your tag name (although you need to put a space first or it will try to do a tag search.)
e.g.
