There is no way to make search "Amazon' and find everyone who has the an amazon entry on their position history. It should be easier to type "amazon' and multi-select all "Amazon" entries and perhaps also the companies listed under the relationship tab without losing the ability to search for the separate Amazon entries or relationships individually.
Hello!
This ability is available in Clockwork. To learn more, please go to:
https://support.clockworkrecruiting.com/article/996-people-filters