GET /topic/%23%E0%B8%9B%E0%B8%A3%E0%B8%B0%E0%B9%82%E0%B8%A2%E0%B8%84%E0%B9%81%E0%B8%8B%E0%B9%88%E0%B8%9A%E0%B9%81%E0%B8%84%E0%B8%9B%E0%B9%83%E0%B8%AB%E0%B9%89%E0%B8%94%E0%B9%89%E0%B8%A7%E0%B8%A2