What would be the recommended best practice re: search result indexing for articles that are meant to appear in a series? For example, I've written a 7 article series on a topic, but due to the weighting of the relevance algorithm, articles 5 through 7 appear at the top of the search results when that topic is searched (see screenshot).

I've artificially tweaked the sequence of the articles that appear on search by up-voting and applying labels to articles 1 through 4, so the articles appear in the correct sequence on search, but I know this is only a temporary solution. Once end users start voting on these articles themselves, the sequence in which they appear on search will change.

It would be really helpful if I could circumvent the algorithm and pin article 1 to appear as the top search result when the topic is searched (since article 1 links out to the others in the series in the correct order). But if there are any other suggestions on a way to achieve this with current functionality I'm all ears!