A morph search in NA28 for
lemma:τέλειος WITHIN 15 WORDS lemma:νήπιος
does not return any results, not even this passage. It doesn't work no matter what number I put after "WITHIN."
10 ὅταν δὲ ἔλθῃ τὸ τέλειον, ⸆ τὸ ἐκ μέρους καταργηθήσεται. 11 ὅτε ἤμην νήπιος,
Eberhard Nestle and Erwin Nestle, Nestle-Aland: Novum Testamentum Graece, ed. Barbara Aland et al., 28. revidierte Auflage (Stuttgart: Deutsche Bibelgesellschaft, 2012), 1 Co 13:10–11.
I tried it with the SBLGNT and it didn't work, either.