Search OmniOutliner front document. Select all rows which match the query and collapse all rows which don't.

oo-search.scpt

set query to the text returned of (display dialog "Enter Your Search Term" default answer "QUERY" with title "Search OmniOutliner Front Document" with icon path to resource "OmniOutliner.icns" in bundle (path to application "OmniOutliner"))

tell application id "OOut"
	
	try
		set doc_name to name of front document
	on error
		activate
		display dialog "No Document Open"
	end try
	
	set the_result to {}
	set every_row to every row of front document
	
	repeat with r in every_row
		set row_text to text of topic cell of r
		if query is in row_text then
			set end of the_result to r
			collapseAll rows of front document
		end if
	end repeat
	
	repeat with i in the_result
		set the_ancestors to the ancestors of i
		repeat with j in the_ancestors
			set expanded of j to true
		end repeat
	end repeat

	set index of window 1 where name contains doc_name to 1
	activate window 1
	
	if the_result is {} then
		activate
		display dialog "The word " & query & " was not found." with icon path to resource "OmniOutliner.icns" in bundle (path to application "OmniOutliner")
	else
		tell front document to select items of the_result
	end if

end tell