In the Tip & Notes section, found on each page, there are noted on the full alphabet. There are some variants to how people interpret the sounds: so for ν Ν we accept: [n/nu/ni/niu/nee/ν/νι].
There is no translation for "n nee". I thought it was a typo and I didn't answer the question. Instead, you should ask "type the (sound) equivalent of n nee" or something like that, but still I don't find the question useful.