You should take that Wikipedia table of correspondences with a big pinch of salt.
Zamora is not a straightforward analogue, even a mixed one. Part of Zamorian culture is the ancient Pre-Cataclysmic Zhemri civilization, which is an evil, alien, nonhistorical strain. The only two certain Zamorian character names are Shevatas, which de Camp speculated to be from Thevatata in Indian mythology, and Yara, which might be Russian or Lebanese or purely made up. So draw on the Roma and frontier Mexico and eastern Europe, but not too heavily.
Turanian culture is based on Turkish, Arab, Persian, melting-pot Middle Eastern generally. The Hyrkanian nomads, of which Turan is a settled offshoot, are pretty much Mongols.
Kozaks are like Cossacks, but they're raiders and mercenaries, not a whole people but drawn from many different peoples of the Hyborian Age.