In the Tag Synonyms page of Stack Overflow en español, the ordering by many of the filters does not work. The only one which does work is the first column, 'Sinónimo' (Synonym), while 'Destino' (Target) sometimes does. On the rest, clicking on a column arrow triggers an action, but no ordering is performed on that concept.
In the rest of Stack Overflows, they all work (I provide a link so you can go and click randomly to see them in motion):