i just took a look at my own portfolio to see what it showed for various images.
Where there is a property release, I get pretty good similars for both more from this series (images of similar scenes) and more from this model (anything with the same piece of property). My best guess is that the "series" similars are based on the first 5 or so keywords and that possibly your keyword order (rather than the presence or absence of keywords) is why only two show up for you.
Could that explain it?
Where there's no property release, I also get good similars for images that were not uploaded at the same time but have similar initial keywords, so it doesn't appear to be upload time that connects them.
Thanks for some possibly better ideas than I came up with. I was thinking along property releases or descriptions, but they all have so much in common, theme and type, that I couldn't figure out what made the three that show a series and all the rest, not? But when I look at same model I get 81 of them?
So that's the property release.
I'll take a look at descriptions and keywords, thanks.
I don't remember anything from the keywords or search webinars that dealt with this, but I might have been zoning in on rank, rating and all that 30 days to be rated stuff. Plus the 49 words and word order and titles parts. Nothing that I see in my notes or recall about Same Series?