Anh sits next to 3 phonetic neighbors — Ann, An, and Ahn are the closest matches by sound. Most share Anh's Vietnamese-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"light, brilliance, radiance"
"excessive pride in appearance"
"work, activity, to cultivate"
"praised, admired"
"noble, well-born, gentle"
"my delight, my pleasantness"
"gift of God"
"exalted nation, my people"
"weary, delicate (from Leah)"
"God is gracious (feminine form)"
"garden, orchard of God"
"Son of Kenneth; handsome one"
"demigod, hero"
"fair and smooth (via Jennifer)"
"heavenly child, royal flowers"
"star"
"Where is the prince? Not exalted"
"from Jilan (honorific for Sufi saint)"
"epithet of Demeter (goddess of harvest)"
"joy, happiness"
Similar sound: These names share phonetic patterns with Anh — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Vietnamese origins, giving them the same cultural heritage as Anh.
Rhythm: Anh is a 1-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.