1: συγκυρία
(Strong's #4795 — Feminine Neuter — sunkuria — soong-koo-ree'-ah )

lit., "a meeting together with, a coincidence of circumstances, a happening," is translated "chance" in Luke 10:31 . But concurrence of events is what the word signifies, rather than chance.

2: τυγχάνω
(Strong's #5177 — Verb — ei tuchoi — toong-khan'-o )

lit., "if it may happen" (ei, "if," tunchano, "to happen"), signifies "it may chance," 1—Corinthians 15:37 .