Renders a section, if the body is not empty. Supports authors to create content, clutter-free rendering without empty sections. Allows to transclude the content.
You can create an advanced search query using Confluence search syntax. These are special words and symbols you enter into the search field to narrow the focus of your search.
This page, part of the Atlassian Confluence documentation, outlines the syntax supported by Confluence's search engine, Lucene.