If I understood you correctly, you're using "Generating Bookmarks From Page Text" feature. The "Match Text Pattern" option also allows you to use regular expressions which can be helpful, if not the only existing option, in your same font style problem.
For our regular expressions pattern, we're using ECMAScript regular expressions pattern syntax. Here's the link with detailed guide to it:http://www.cplusplus.com/reference/regex/ECMAScript/
As for your current needs, I've written a small pattern and tested it on similar document, which you can update as you like so it will do exactly what you need - just paste it in "Match Text Pattern" edit field:
PS: I've only selected "Match Text Pattern" check box from "Text Content Rules Group" others are unchecked