What is the difference between a Host Search and a Host Timeline?

Results from a Host Search return information in an organized view by type, while a Host Timeline returns a view of all events recorded by the sensor

A Host Timeline only includes process execution events and user account activity

Results from a Host Timeline include process executions and related events organized by data type. A Host Search returns a temporal view of all events for the given host

There is no difference - Host Search and Host Timeline are different names for the same search page