Alfred searching through directories and filenames at the same time
One of Alfred's example workflows is Dynamic File Search. Here you enter the keyword or press a hotkey, then enter the folder, then the file. In the images, I've used the default keyword activation of ‘ff’, however you can set up a keyboard shortcut to go directly to dynamic file search. Once a folder is found, press enter to start searching for files within.






To activate this workflow, open Alfred Preferences → Workflows, click the + at the bottom to add a new workflow and select Examples → Dynamic File Search.