Hi!
The first issue might be related to stripping HTML tags incorrectly. On the Advanced Options -> Content panel, remove everything from the HTML Tags exclude from stripping content option: http://i.imgur.com/uDOt16v.png
That way it will strip every HTML tag from the results, and no unclosed tag issues should appear.
The second issue is definitely not because of the exact matches. I’m guessing maybe a configuration issue on the index table, but I’m not sure. I cannot see login details on the ticket. Can you please add them, and I will check the configuration on the back-end.