You could save it as HTML from Word (or FineReader), open it up in your favourite web browser and quickly pass it over. They'll stand out like nails, especially if you zoom out a bit. Then, when you find one, you simply go back to Word and add a line break
(Shift+Enter) where you want. Easy.
Just don't leave spaces before a line break, though.
Toggle this little guy before you check it:
... else there may be a few double spaces when (or if) you decide to convert it to ePUB or some other format.
Also, you could try clicking the middle mouse click when you view the HTML (in the web browser) and drag the mouse down so it will scroll automatically so your finger won't get tired. But not too fast so as to not miss any of them.