[Koha] Searching in Koha

Hello everyone, This is a long annoying thing I found in Koha. Everytime we click a subject that contains a subfield, we get no results. Say we have a subject that contains a subfield like this : Religions -- Relations (‡aReligions‡xRelations). <http://opac.seabs.ac.id/cgi-bin/koha/opac-authoritiesdetail.pl?authid=62971> When I click on that subject, Koha says : "No results found!" searching box become : (su,complete-subfield:{Religions}) AND (su,complete-subfield:{Relations.}) Any thoughts? We use Koha 20.11.18.000 with Zebra. Regards. *Toni Afandi* *Librarian* *STT SAAT*