LibreOffice 25.2 abi
Returns the position of a text segment within a character string. You can set the start of the search as an option. The search text can be a number or any sequence of characters. The search is not case-sensitive. If the text is not found, returns error 519 (#VALUE).
SEARCH("FindText"; "Text" [; Position])
FindText is the text to be searched for.
Text is the text where the search will take place.
Position (optional) is the position in the text where the search is to start.
=SEARCH(54;998877665544) returns 10.