missing speed duel cards

when adding cards to my collection, i found that 3 don't show up in the search (land of the ojamas, middle age mechs, blaze accelerator deployment). is it a common occurence for some cards to just not show up sometimes?

I also had this problem when adding my tag, did you fix it?

In trading card games, it is not uncommon for certain cards to be missing or not show up in search results, especially if you are using an online card database or collection management tool. Run 3