The headings index summarizes your search results in groupings. Each heading may have one or more titles, but it also may provide cross-reference information.
To display the titles associated with a heading, click on the underlined heading to jump to a list of title. You can page through your results by using the navigation bar.
To follow the See or See Also reference(s) related to the Heading, click on the underlined link. This will take you to a new headings index where you can select more relevant headings and titles.