MINI

C:/app/Administrator/product/11.2.0/dbhome_1/oui/

files >> C:/app/Administrator/product/11.2.0/dbhome_1/oui/admin_langs.xml

 <?xml version="1.0" encoding="UTF-8"?>
<languages>
	<language>en</language>
	<language>de</language>
	<language>es</language>
	<language>fr</language>
	<language>it</language>
	<language>ja</language>
	<language>ko</language>
	<language>pt_BR</language>
	<language>zh_CN</language>
	<language>zh_TW</language>
</languages>