在sharepoint中，如何将搜索限制在doc库中的当前文件夹中？

We have a large document library with 3000+ folders. Our customer wants to be able to search within the current folder. Because this document library has a lot of folders creating one scope per folder is out of question. So the question is: How can a search be limited to current folder in a doc library?We have a large document library with 3000+ fol