Yulianna sits next to 4 phonetic neighbors — Juliana, Yuliana, and Yuliya are the closest matches by sound. Most share Yulianna's Russian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"youthful; downy"
"manly, virile"
"one who brings good luck"
"Yahweh has been gracious"
"eye, vision; ancient, before"
"luminaries, lights (plural)"
"pure, unsullied"
"alive, lively (from Viviana)"
"may God protect"
"gold, golden"
"Basque feminine name, possibly 'noble lady'"
"star (from Persian)"
"morning glow, aurora"
"daughter of Briseus"
"from the Tatius family"
"bitter"
"goddess of wisdom and warfare"
Similar sound: These names share phonetic patterns with Yulianna — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Yulianna.
Rhythm: Yulianna is a 4-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.