diff --git a/rhodecode/templates/admin/admin.html b/rhodecode/templates/admin/admin.html
--- a/rhodecode/templates/admin/admin.html
+++ b/rhodecode/templates/admin/admin.html
@@ -7,7 +7,25 @@
 
 <%def name="breadcrumbs_links()">
     <form id="filter_form">
-    <input class="q_filter_box" id="q_filter" size="15" type="text" name="filter" value="${c.search_term or _('quick filter...')}"/>
+    <input class="q_filter_box ${'' if c.search_term else 'initial'}" id="q_filter" size="15" type="text" name="filter" value="${c.search_term or _('quick filter...')}"/>
+    <span class="tooltip" title="${h.tooltip(_('''
+        Example search query:
+            "repository:vcs"
+            "username:marcin"
+        
+        You can use wildcards using '*'
+            "repositroy:vcs*" - search everything starting with 'vcs'
+            "repository:*vcs*" - search for repository containing 'vcs'
+        Use AND / OR operators in queries
+            "repository:vcs OR repository:test"
+            "username:test AND repository:test*"
+        List of valid search filters:
+            repository:
+            username:
+            action:
+            ip:
+            date:
+    '''))}">?</span>
     <input type='submit' value="${_('filter')}" class="ui-btn" style="padding:0px 2px 0px 2px;margin:0px"/>
     ${_('Admin journal')} - ${ungettext('%s entry', '%s entries', c.users_log.item_count) % (c.users_log.item_count)}
     </form>
@@ -33,13 +51,23 @@
 
 <script>
 YUE.on('q_filter','click',function(){
-    YUD.get('q_filter').value = '';
+	var qfilter = YUD.get('q_filter');
+	if(YUD.hasClass(qfilter, 'initial')){
+		qfilter.value = '';
+	}
+});
+var fix_q_filter_width = function(len){
+    YUD.setStyle(YUD.get('q_filter'),'width',Math.max(80, len*6.50)+'px');
+}
+YUE.on('q_filter','keyup',function(){
+	fix_q_filter_width(YUD.get('q_filter').value.length);
 });
 YUE.on('filter_form','submit',function(e){
 	YUE.preventDefault(e)
     var val = YUD.get('q_filter').value;
 	window.location = "${url.current(filter='__FILTER__')}".replace('__FILTER__',val);
- });
+});
+fix_q_filter_width(YUD.get('q_filter').value.length);
 </script>
 </%def>