What new or enhanced feature are you proposing?
I think Google Apps Script should have some function that can search a given range for a string and return the cell or an array of cells that contain the string. It would look something like this.
var sheet = SpreadsheetApp.getActiveSheet();
var cells = sheet.getRange("A1:C3").find("text to be found");
What goal would this enhancement help you achieve?
When I have a table sorted by one column on the left, it's not too hard to create a search function for that instance but when I want to search the entire spreadsheet for something, it's pretty much impossible or too slow.