Ok it may just be on my side, not 100% sure, but in splore is I do a single word search it will work:

But once I start to search for more than one word separated with spaces it will reply "cannot connect to the BBS":

(had to make two images, gif record do seems to stop as soon as the error pop up at the bottom)

I can't check right now, but I suspect it is linked with how the URL to search on the BBS is generated.