Why can’t Tianyu B858 display text messages that are too long?

Under normal circumstances, you will receive one text message and two messages in a row. Sometimes due to network reasons, one line will be received with a delay of 3-5 minutes, and you may not receive the next one ( The remaining part), if you only receive one text message, it’s no use. Each text message has only 70 characters. If it exceeds 70 characters (including punctuation), it will be sent as 2 messages.