I noticed (from time ago) FIND works fine but the display of results is not completely useful. Let me explain:
If the found string is withing the actual visual range of the page, the result is displayed there (with context of the surroundings) but if the string is out of the actual visual range of the page, the found string is shown at the right of the edit pane, loosing some context (I mean, the content at the right of the same found string).
What I like is to have the founded string at the center in order to see what happens before and after the string. Take a look at the 2 images, first as is now, second, as I liked it. (click to view full size)
If the Team thinks this is useful or doable, we can vote of this.