UserAgent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.92 Safari/537.36

Steps to reproduce the problem:
1. First you do a search on a web page.
2. Then you do a  search on that search result.

What is the expected behavior?
Filter current search

What went wrong?
No sub-search / secondary search available.

Did this work before? No 

Chrome version: 69.0.3497.92  Channel: n/a
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: 

Would be very useful.