If you do a Bible search using NASB95 on the term "angels" and scroll down the results to Acts 7:30 I get an anomaly of in the displayed verse:
"After forty years had passed, aan angel appeared to him in the wilderness of Mount Sinai, in the flame of a burning thorn bush." as it appears the Bible display to:
"After forty years had passed, Dot N Dot NGEL appeared to him in the wilderness of Mount Sinai, in the flame of a burning thorn bush....."
The Search code seems to be having trouble with footnote marks in the source text.