Assuming it isn't cancelled.
According to a newly posted code change, with an accompanying flag in chrome://flags, Google is preparing a built-in clipboard manager for Chrome OS. Judging from the flag’s description, it seems to be inspired by Windows 10’s own clipboard manager, using a similar key combo.
The key combo itself, Search + V, isn’t too surprising, as Chrome OS uses the Search key in many other useful ways. In this case, Search + V was likely chosen for the clipboard manager to be similar to the Ctrl + V combo for paste on most computers.Enable Multipaste
Pressing search + v will show a menu that allows you to paste things previously copied.