In the data assist search behavior, you have set the second 2 criteria to use elements that dont exist on the index page.
the second criteria is set to use the value of an element named "uwo" the third criteria is set to us an element named "fanshawe"
on the index page, the second and third select lists are named "distuwo" and "distfanshawe"
the simple fix would be to rename the select lists to the names being expected in the data assist search behavior, "uwo" and "fanshawe"