I use the Russian version of Evernote. There are several tags with the Russian letter ‘б’ (b) in its names in my notes (for example, «проблема»). After entering this letter in the tags field («проб») under the note, I move on to the next tag. Important note: the same key is responsible for the Russian letter ‘б’ (on the Russian keyboard layout) and for the comma (on the English layout).