Why isn't there a xóa button in my own số phiếu bầu and clubs?

Once a club has been created, it doesn't just belong to whoever created it. It also belongs to other members, and to fanpop in general. That's why a club can't be deleted. Even if you've Mất tích interest in it, there might be others here who like the topic and might want to join.

I think it might be possible to leave a club once you're not the only member, so if others have already joined this might be your best bet. Otherwise, bạn can báo cáo the club if it's a duplicate hoặc inappropriate, and get it deleted that way. bạn can't báo cáo it for deletion just because bạn now think it's a stupid topic for a club, though.

số phiếu bầu are the same way, belonging to all of fanpop and not just you. I think it's possible to edit/delete số phiếu bầu for a few phút after creation, but not later. Otherwise people would just spitefully xóa any phiếu bầu whose results weren't going the way they wanted.