Search keywords not working as expected in frameless output

Yes, I have the "Enable substring search" box checked on the Search > Search Context page.
As noted in a separate message I sent you, I think a more precise wording of the bug would be:
The system does not find a topic that includes a "search" keyword (multiword keyword or single-word keyword) if: 1) the topic does not include the “search” keyword in the body of the topic (which is the purpose of adding a “search” keyword) and 2) the user puts the "search" keyword in quotation marks when performing the search.

Since we posted at about the same time and since my findings were different from yours, please see the second part of my reply before posting the bug report.  Thanks!

I tested on a different project. I found the same results involving "search" keywords.

If I used quotation marks to search for "gray diamond" where "gray diamond" was a "search" keyword and appeared in the text of the topic, a search for "gray diamond" within quotation marks located the topic.

If I used quotation marks to search for "purple circle" where "purple circle" was a "search" keyword that did not appear in the text of the topic (i.e., did not appear anywhere within the html body tags), a search for "purple circle" within quotation marks did not locate the topic--and this is the issue/bug.

If it helps, here is my original post, with the paragraph breaks. I have also put one sentence in bold.

I am using RH 2022.5.28 and generating frameless output.  I want a user to be able to find via the Search a topic that contains a search keyword (whether the keyword is one word, such as 'POS', or a multi-word keyword, such as 'point of sale') which appears as part of a comma-delimited list (no quotation marks around the individual keywords) in the content section of the search-keywords meta tag in the header but not in the body of the topic.

Using the generated output, if I search for the topic by placing the keyword within quotation marks (e.g., "POS" or "point of sale") in the Search field, the system does not find the topic. Should it? I was expecting it to.

Using the generated output, if I search for the topic without placing the keyword within quotation marks in the Search field, I get a LOT of matches, which do include the topic, but may bury it so deep I am not likely to find it.

When I search for POS without the quotation marks, for example, I get 426 matches: every topic that includes the whole word 'POS', every topic containing 'PO' (where the system appears to allow PO as a singular form of POS), and every topic containing any word containing 'POS', such as position, posted, deposit, proposal, etc.  In this situation, the topic gets buried so deep a user is not likely to find it. If I search for point of sale without the quotation marks, I get 379 matches: every topic that includes 'point' and/or 'sale'. In this instance, my topic is somehow listed as the first of the 379 matches, possibly because no other topics include 'point' so close to 'sale'.  While I am not disappointed to find the topic this way, it seems counter intuitive to expect a search to find my topic when I don't use quotation marks around a keyword that contains such commonly used words and to not find my topic at all when I use quotation marks around the exact single-word or multi-word keyword, as if doing a consecutive word search.  Is this how searching for a search keyword should work?  Thanks!

... End of original post, with the paragraph marks and the sentence in bold.

Peter, in my online help, I have included information on using quotation marks when searching for a specific multiword string.  That is what I and my users expect to be able to do.  See the sentence above in bold. In every test I performed, putting a search keyword (whether a one-word search keyword or a multiword search keyword) within quotation marks when performing a search via the output did not locate any of the topics containing the search keyword.  That is my main reason for writing this post. Again, I thought this functionality should work. It does not.

Also, just to be clear, I am talking specifically about keywords added to a topic as "search" keywords.  Please see the following image:

UI:

HTML

Results using quotation marks around search keywords:

Again, the search will find the topic containing a "search keyword" (including finding the term in a substring as I indirectly noted in the original post) if I do not use quotation marks when performing the search, but that will make the search virtually useless in scenarios where the system returns 100+ matches and the topics users are trying to find are buried in the list.