gandharvan—inhabitants of the Gandharva planets SB 2.10.37, SB 2.10.38, SB 2.10.39, SB 2.10.40, SB 2.10.37-40
gandharvan—persons related with the Gandharvas, who are mostly pretenders SB 9.11.13, SB 9.11.14, SB 9.11.13-14
gandharvan—the inhabitants of Gandharvaloka SB 9.7.3
gandharvan—the residents of the Gandharva planet, who are very beautiful and are expert in singing SB 2.3.2, SB 2.3.3, SB 2.3.4, SB 2.3.5, SB 2.3.6, SB 2.3.7, SB 2.3.2-7
Can't find any compound Sanskrit words containing gandharvan.