After conducting a search on the ProQuest Platform, you will see a URL similar to this in your browser's address bar. This is
not a permalink that can be used to get back to the search results set:
https://0-search-proquest-com.library.cairn.edu/results/69AEE602C56243AFPQ/1?accountid=12345
In order to get a permalink, click
Save search/alert ->
Get search link
The resulting overlay window will have a permalink that can be used to navigate back to the search results.

This type of link is good for
1 year. If you need to save a search for a longer time period, you will want to create a My Research account and save your search there.