tapasvinah—for a vanaprastha, one who has adopted a life of austerities SB 7.15.38, SB 7.15.39, SB 7.15.38-39
tapasvinah—those engaged in severe austerities and penances Madhya 22.20
tapasvinah—the great learned sages SB 2.4.17
tapasvinah—persons who are engaged in austerities SB 10.4.40
tapasvinah—the sages. SB 8.13.34
Can't find any compound Sanskrit words containing tapasvinah.