durlabhah

su-durlabhaḥ very rare to see; BG 7.19
su-durlabhaḥ very difficult to obtain; SB 3.4.15
durlabhaḥ very rare; SB 4.24.17
durlabhaḥ very difficult to be obtained; SB 4.24.54
durlabhaḥ very difficult to obtain; SB 6.11.23
su-durlabhaḥ very rarely found; SB 6.14.5
durlabhāḥ very rarely obtained; SB 7.4.2
durlabhāḥ very rarely obtained; SB 9.4.25
durlabhāḥ unobtainable; SB 10.81.6-7
durlabhaḥ difficult to achieve; SB 11.2.29
durlabhaḥ difficult to find; CC Madhya 1.203
su-durlabhaḥ very rare; CC Madhya 19.150
su-durlabhāḥ very rare; CC Madhya 20.61
su-durlabhaḥ very rare; CC Madhya 25.83
durlabhaḥ difficult to achieve; NBS 39