Global Trade Market...questions...concerns...complants!!!

The popular items shown in the global market are like ghost list (past/gone items), because every time I click to the items, nothing appear.

(But for non-popular items is good, there are several non-popular items shown.)

It's not good if all time players click and then found nothing.
(The showing items are already gone while traveling to the most player's machines)
If you have no solution processing fast and faster enough to get rid of the ghost items (advance level in difficult way is about prediction).

I have a simple solution to propose. Could you dedicate first 8 items used old algorithm, and the rest items used new algorithm?
(i'd like to find popular items more than non-popular item)
This will merge the pro of two algorithms, than use one algorithm to merge all selling items into one big list because this game has a limitation of showing items per time that already make my showing items as ghost list.