Memo isn't a transaction field, Notes is.

manual/C/Help_ch_Tools_Assistants.xml

@@ -63,7 +63,8 @@
         .
       </para>
 
-      <para>Exactly which transactions are searched depends on where you invoke the tool from. If you start from
+      <para>
+        Exactly which transactions are searched depends on where you invoke the tool from. If you start from
         the main accounts hierarchy page, all transactions will be searched. If you start from an
         individual account register, only transactions in that account will be searched. And if you
         filter the transactions in a register using
@@ -163,7 +164,7 @@
         </para>
       </note>
 
-      <para>When search criteria are selected, you can press the <guibutton>Find</guibutton> button. You will be
+      <para>Once you've set the search criteria, you can press the <guibutton>Find</guibutton> button. You will be
         presented with the search results in a new register tab. A report of the search results may
         created and printed using
         <menuchoice>
@@ -234,7 +235,7 @@
               <entry morerows="2" valign="middle">
                 <para>Description
                   <footnote id="DMN">
-                    <para>The Description, Memo, Number are common to all lines in a transaction.
+                    <para>The Description, Number, and Notes fields belong to the transaction, all other searchable fields are part of individual splits.
                     </para>
                   </footnote>
                 </para>
@@ -294,7 +295,7 @@
 
             <row>
               <entry morerows="2" valign="middle">
-                <para>Memo<footnoteref linkend="DMN"/>
+                <para>Memo
                 </para>
               </entry>
 
@@ -453,7 +454,7 @@
 
             <row>
               <entry morerows="2" valign="middle">
-                <para>Notes
+                <para>Notes<footnoteref linkend="DMN"/>
                 </para>
               </entry>