Update: Since or search was added for tags in our move to elasticsearch, you'll now see these combos populated correctly in the question list pages.
Note: we still won't populate the tags box specifically under Unanswered on the "my tags" tab, as it rarely makes any sense and would almost never give intuitive search results. If we change the "in my tags" search, I'll revisit and see if we can populate the box in a way that makes sense there.
This is (currently) by-design, we don't support
OR searches through the search interface at the time, so if we did populate it, just hitting enter would take you here (
[java] OR [swing] search results), not the expected page (exactly where you were).
We may improve/change this in the future, just no firm plans at the moment.
Downvotes aside, and I'm sorry if you don't like the answer...but putting in text that would errantly link you to something that doesn't exist is not behavior we'd intentionally introduce...