How to handle unknown number of url terms [#2869502]

I haven't found any similar issue so i will try to explain my situation here.
I use FacetAPI and Facet API Pretty Paths module to make urls more explanatory to the user. For example i have some refrigerators and my FacetAPI block has some brands (like LG, Samsung, Bosch etc.). My base url is http://example.com/refrigerators.
When i click at one option, i get the following url for example, http://example.com/refrigerators/brand/lg
of course i can choose as many brands as i want to be displayed. For example if i choose another one my url is the following, http://example.com/refrigerators/brand/lg/brand/samsung. As you may understand for each brand i choose a "brand/" is added to the url.

Here i have to say that the brands are terms vocabulary. Now the question is about breadcrumbs and especially for Path Breadcrumbs of course.

If i setup a new path refrigerators/brand/%term the breadcrumbs work!
If i setup a new path refrigerators/brand/%term1/brand/%term2 the breadcrumbs work!
But this is the manual way :)

How can i setup a generic rule so to catch unlimited number of options which someone may select ? A rule to work for 1 option (1 brand in my example) to unknown number of options ... ?