You mark all items you are interested in on your filter list. If raid drops any of those selected items, drop count for that raid is increased. "Min items sum" field decides minimum drop count to include on result list.
For example let's use your seed 0000809A. Assume I checked all herbas on my filter list and "Min items sum" is 3. Raid drops one sweet and one salty herba, so drop count is 2. 2 >= 3 isn't satisfied so this seed will not be included in my results. However if I reduce the threshold to 2, 2 >= 2 is satisfied, so raid will appear on my list.