you have to dive in to the HTML code a bit. Right click next to the video you're looking for, right click, and click "inspect element" in the dropdown menu. This brings up a panel with the page's code, focused on the area of the page where you clicked. From there, click down into the "container" of the video and you'll eventually find the link to the original vimeo page. From there, you can get the share and embed links.
OK- the page is organized into <DIV> tags. I should have said DIV instead of container, I used that language because the DIV contains other elements of page content. DIVs can contain more DIVs as you will see if you open them.
Any tag that contains anther tag will be "folded" with a right-facing arrow next to it. Click that arrow to expand the tag and see what's inside. You'll have to open about 5 or 6 DIV tags to get to the usable link, which will look like: http://vimeo.com/78133040. There's another link further up the stack that looks like "player.vimeo.com/video/78133040" but that one's still not embeddable. If you know Vimeo link formatting, though, you can see the video # (78133040) and put it at the end of http://vimeo.com/ to get what you're looking for.