The fares for these products were removed (if I recall correctly) after laws came in requiring advertised fares to include taxes. Since the taxes vary according to which countries are visited on a single- or multi-continent fare, this made compliance difficult. At least that was the stated reason (I also recall skepticism about this), and fare information is only partly related to fare rules.

For the multi-continent "circle" and "explorer" passes, it is possible to find the fare rules in expertflyer by putting the same origin and destination.

For the visit passes, it might be possible to look up by fare basis (e.g. MASAPASS*, * being number of coupons) but expertflyer doesn't allow a fare basis that long to be entered.