-As notmuch is using Xapian
-[this page](http://xapian.org/docs/queryparser.html) is a good start.
-However, the description is generic (applies to Xapian in general) and
-its intended audience seems to be developers wanting to use Xapian in
-their applications. This page attempts to explain it to users of notmuch (who
-may not be familiar with Xapian). 'notmuch help search-terms' also has a few
-pointers.
+The [notmuch-search-terms manual
+pages](https://notmuchmail.org/doc/latest/man7/notmuch-search-terms.html)
+should cover everything in a fairly concise manner. Please refer to
+that for any details.
+
+Notmuch uses the [Xapian](http://xapian.org/) search engine. The [Xapian
+QueryParser](http://xapian.org/docs/queryparser.html) documentation has
+a generic description of the search language. The intended audience is
+developers wanting to use Xapian in their applications; this page
+attempts to explain it to users of Notmuch.