Việt
phức chất
Anh
Complex substances
Compound matters
complex
complex compound
Đức
Komplexe Substanzen
Zusammengesetzte Angelegenheiten
[DE] Komplexe Substanzen
[EN] Complex substances
[VI] phức chất
[DE] Zusammengesetzte Angelegenheiten
[EN] Compound matters