Chikyu-Ryu Means earth dragon. Close enough not the exact translation of "dragon of earth"
The Japanese word for Dragon is "Ryuu"
Doragonfurūtsu
ドラゴンストライキ
Kagami Ryū
ryu-ken
'Kinzoku no ryuu'.
ryu no ha
ginryu
Doragon iki
to say dragon in Japanese is 龍 and it is read ryuu hope this helps :)
'Small dragon' would be 小さい竜 (chiisai ryuu) in Japanese.
"chi", and "ji" means blood ryu means "dragon"