Manual Related Posts Autocomplete - Post Missing

[benjaminpick]

Describe the bug I like the autocomplete search for the "manual related posts" page. However, it doesn't consistenly find post even when I enter the beginning of the post title.

To Reproduce Here is how it can be reproduced on my website:

Post 6717 - Search for "Ask" -> Results: 3 posts that don't have "Ask" in the title, the correct post (called "Ask me!") is missing Post 6630 - Search for "Ask" -> Result: 7 posts, with the correct post ("Ask me!) as first result

Maybe that's because on post 6630, they have the same categories. But I thought the point of manual crp is to add posts even if they wouldn't be matched otherwise?

Expected behavior I expect that he is finding any post that has the keyword I enter anywhere in the title. Actually I would have expected to see only posts that have the keyword in the title, not other posts. But's is ok to show more.

Additional context

List tuning options: only option that is different than default is "limit to same post type" (because I am only using crp for "post")

Do you need more infos? I could send you an export of my posts if you want.