Minor language tweak on the description on search rules.

Author: alan-wu

src/components/DatasetExplorer.vue

@@ -24,22 +24,23 @@
               <ul>
                 <li>
                   <strong>Multiple Terms:</strong> Separate terms with a comma (<code>,</code>).
-                  This will find dataset that match any of the terms (an "OR" search).
+                  This will find datasets that match any of the terms (an "OR" search).
                 </li>
                 <li>
-                  <strong>Exact Phrase:</strong> Terms within a comma block will be matched as exact phrase.
+                  <strong>Exact Phrase:</strong> Terms within a comma block will be matched as an exact phrase.
                 </li>
               </ul>
               <br/>
               <strong>Examples:</strong>
               <ul>
                 <li>
                   <strong>To find by exact phrase:</strong>
-                  Searching for <code>vagus nerve</code> will find any dataset containing <code>vagus nerve</code>.
+                  Searching for <code>vagus nerve</code> will find any dataset containing <code>"vagus nerve"</code>.
                 </li>
                 <li>
                   <strong>To find by multiple terms:</strong>
-                  Searching for <code>kidney, vagus</code> will find data that contains either <code>kidney</code> OR <code>vagus</code>.
+                  Searching for <code>nerve, vagus</code> will find data that contains either <code>nerve</code> OR <code>vagus</code>.
+                  <br/>
                   Due to the limitation of the search engine, space between words in a comma block will be treated as comma when multiple terms search is active.
                 </li>
               </ul>