I'd suggest that Mudcatters read my guide to searching. It's the first message in the FAQ thread.
https://mudcat.org/detail_pf.cfm?messages__Message_ID=196922

People always go to the Mudcat search, but it has never been reliable - Max never got it past the experimental stage. Our older, more reliable search engines are the Filter (top of the Forum Menu) and the Old Advanced Forum Search (in QuickLinks)
https://mudcat.org/forumsearch.cfm

The Filter searches by thread name. Put one distinctive word (like international) in the Filter box and set the age back to "all," and refresh. Then do a secondary search of the results with CTRL-F, maybe looking for women (or whatever). You'll be amazed what you can do with CTRL-F on any Web page. A search and then a secondary search are very powerful.

The "Old Advanced Forum Search" can search for MESSAGE title (subject), and I have been re-titling messages for 25 years to make this more useful. It can also be used by UserName, to find messages posted by whomever. If you're looking for your own messages, click on your name in any message you've posted, and you'll find your Mudcat Life History.

Hope that helps.