^^^^^^
Petra,
I think you now have thankfully inadvertently put into words the root problem with the new search format compared to how it worked before the change. When you would search for Tory Lane (our example here) with the old search feature, using the settings one week or newer (or last visit, 2 weeks ect) it returned results where she is mentioned in a thread, within that time frame, even if she is not in the title of the thread, example you may find Tory Lane mentioned, within the specified time frame, in a thread that started with a title like “best facial”, (popular threads here at freeones).
I hope that makes sense, but that is the problem with the new search feature.