Evernote has added Descriptive Search, a new way to search using natural language instead of difficult-to-remember search syntax. So far, just for the Mac, but I’m sure the Windows version won’t be far behind.
From Brooks Dundan’s excellent blog:
For example, one of the biggest wins is how easy it is to find notes that contain a PDF. Previously you had to do some pretty wacky search syntax, but now it is as easy as typing “notes with pdf”.
via Evernote Descriptive Search | DocumentSnap Paperless Blog.