The current 'past' link isn't searching for the url at all. I think if it looked at the url instead of the title then it would miss when there are articles from other sites on the same topic so there is a bit of a tradeoff. If it looked at both, Algolia treats it as an 'and' so it would also not return the older submission. An 'or' would probably work well for this use case but not sure if it is supported.