GET /topic/%23%E0%B9%80%E0%B8%A2%E0%B9%87%E0%B8%94%E0%B8%84%E0%B8%A3%E0%B8%B1%E0%B9%89%E0%B8%87%E0%B9%81%E0%B8%A3%E0%B8%81%E0%B8%A3%E0%B8%B9%E0%B9%89%E0%B8%AA%E0%B8%B6%E0%B8%81%E0%B8%A2%E0%B8%B1%E0%B8%87%E0%B9%84%E0%B8%87