Some notes on constructing searches that I’ve learned the hard way, but you don’t have to: Find a handy url-encoding cheat-sheet, like this one: http://www.blooberry.com/indexdot/html/topics/urlencoding.htm. You will have to replace special characters  (@, #, :, etc.) with their url-encoded version. + and %20 (a url-encoded space) seem to be interchangeable when constructing complex search queries…. Read more »