Welcome to SaleHoo! Your concern is pretty similar to that of a couple of our other members in this Link hidden: Login to view.
Please note that I was able to fetch results for the keywords you mentioned in your post, Link hidden: Login to view
The lab returns dashes instead of data when the global search limit has been reached for a particular keyword. As confirmed by our developer, this will refresh or renew after ~12hours.
Hope this helps!