No, I can’t say I’ve had that experience on the website before and use it extensively. Nor would that be consistent with how the typical software works. It’s possible, if the website is set up such that text is intentionally not searchable by the crawlers for the search engines, but as far as I can tell it does not have that issue.
you have made an assertion that the stereophile website has a defective search engine. That is possible, but the only evidence is your assertion.