If he doesn't not,  they try to do something about it, get him out of it,  find a school he will like.

网友if从句错误。主句三个不定式to do, get 和 find 由逗号连接。 get...和find... 为对 to do something about it 的解释。也就是说，在语法结构上是并列的，但在语义上后者是对前者的举例。该句等于下句：

They try to do something about it. For example, they try to get him out of it,  (to) find a school he will like. 不用and 意味着还有更多的例子没有列举。