read messages not being displayed but still included in the mailbox count

I have set up rules to move messages from the inbox to saved folders. There are some messages which remained in the Inbox and I have read but not moved to saved folders. There are other read messages which remain in the Inbox. The count of messages in the Inbox (and all folders as well) does not match the number of messages displayed. I am attaching a screenshot showing there are 2 messages displayed in my Inbox, but showing a count of 7 messages. I know there is at least one of the "missing" messages which I need to move manually to another folder, but how do I see those "missing" messages?