Complex sentence: He has received an Honorary High school diploma from Hood River Valley High, Hood River, Oregon in 1990 and a "Fachabitur" diploma in 1992 from Fachgymnasium Wirtschaft in Braunschweig, Germany.
Split into simpler sentences: He has received an Honorary High school diploma from Hood River Valley High, Hood River, Oregon in 1990 in the United States. He received a "Fachabitur" diploma in 1992 from Fachgymnasium Wirtschaft in Braunschweig, Germany.