isearch-back-into-window

isearch-back-into-window is a compiled Lisp function in `isearch.el'.

(isearch-back-into-window ABOVE ISEARCH-POINT)

Scroll the window to bring the search string back into view.
Restore point to ISEARCH-POINT in the process. ABOVE is t when the
search string is above the top of the window, nil when it is beneath
the bottom.