Helpo de LibreOffice 24.8
Returns the starting position of a given text, using byte positions (not case sensitive).
SEARCHB(Find Text; Text [; Position])
Find Text: The text or text expression to be found.
Text: the text in which the search is to be made.
Position: The position in the text where the search starts.
=SEARCHB("ᄫᄬ";"ᄩᄔᄕᄜᄝᄞᄠgᄢᄣᄫᄬᄭᄮᄯᄲᄶ";17) returns 20.