If you're having a hard time generating a url with text fragment, you can try this chrome extension for free. This extension helps construct a URL that contains the text fragment and depending on the user's behavior, either copies the generated URL to the clipboard or opens it in a new tab. Users can access the text more quickly and precisely with this url since the browser will automatically scroll to and highlight the text fragment on the page.

Some of its other features are to add the text url to the clipboard after copying it and also supports multiple text fragments.