for 6.2.1-version
/usr/share/zabbix/app/controllers
CControllerSearch62.php

/usr/share/zabbix/include
defines.inc62.php

/usr/share/zabbix/app/views
search62.php

Important!
You must first backup the original version files:
CControllerSearch.php
defines.inc.php
search.php

Then copy the following files into their respective directories
CControllerSearch62.php --> CControllerSearch.php
defines.inc62.php --> defines.inc.php
search62.php --> search.php