The best way to search for on-campus courses taking place during a January mini-semester is with dates.
The dates
2013: Jan 2 - 20
Look for the section of the search page that says "Starting On/After Date" and type in the mini-semester start date; in the "Ending By Date" field, type the mini-semester end date.
You can still narrow your search using disciplines, subjects, locations, etc. This will keep your list to a much narrower grouping.
Finally, when you're looking over the resulting list, be sure the section code on the course you choose begins with "J" (J1, J2, etc.). This will assure that you have a mini-semester course.