Click the Find First button on the Search toolbar of the AceText Editor to find the first occurrence of the search term in the active clip. If you turned on the search option “all clips in this collection” then all the clips in the current collection will be searched, just like the Find First Clip button on the AceText Tower does.
If the “all clips in all collections” search option is on, then AceText starts searching in the first open collection (leftmost tab) to find the first matching clip.