Jovana sits next to 4 phonetic neighbors — Giovanna, Ivana, and Johanna are the closest matches by sound. Most share Jovana's Slavic cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"God is gracious, Yahweh has been gracious"
"bright, beautiful"
"princess, flower"
"defender of mankind"
"world glory / glory of the universe"
"Lovely, pleasant"
"foreigner, stranger"
"gift of Yahweh"
Similar sound: These names share phonetic patterns with Jovana — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Hebrew origins, giving them the same cultural heritage as Jovana.
Rhythm: Jovana is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.