one thing I misunderstood about your original post is that I thought you were saying this used to work in QuizPort Moodle 1.9 but it doesn't now work in Moodle 2.8. However, having done some preliminary testing I realize that this kind of activity has never worked in Moodle. In other words, this is a new type of Find It (A) activity that you are trying out in Moodle - is that right?
The difficulty is that in Moodle, TaskChain doesn't consider individual punctuation marks to be a "word". If you changed the individual pucntuation marks to a string of letter, e.g. "HERE" or "XXX", then I think the exercise will be have as you expect.
The titles are stripped of all tags and the resulting text is put into <h2> tags, so you can probably style that more how you like using CSS.