I recently overhauled this website and haven't repaired all of the old URLs. But there is a solution rather than starting over at the home page if you want to try it. In the window where you see the URL displayed, you will see an address that looks like this:
Put your cursor up there and delete the .html that comes at the tail end of the address. And don't forget the period. Then hit enter and you'll end up where you wanted to be.
If this doesn't work for some reason, there's another way to find your page that's better than using the search feature on the front page which returns too many results to be helpful.
Make a note of the name of the page. You can tell because it's at the end, before ".html". Select a distinctive word from the title, let's use "muslin" as an example.
Go to this page, it's the index of all entries on this site. On your keyboard, push the ctrl button and the letter "F" at the same time. A small window will open, probably at the bottom of your screen. In the window, type "muslin". Then push next and continue pushing next until the article you wanted is highlighted.