Cannot search for space-like characters
The search box ignores many characters that could be considered white-space characters, for instance U+00A0, U+2009 or U+1680 and many others. This makes it very cumbersome to identify an unknown type of space. If I encounter a special kind of space in a document and want to identify it, what I now have to do is copy the space to a text file, make a hex dump of it, and Google for the hex code. Maybe the best solution for this, is a separate search dialog for single characters.