[low priority or user error]
International keyboard cannot be used to enter quoted search string:
8382 results for ¨is the root of suffering¨
Fix is to type spacebar immediately after typing double quotes
Workaround is to revert to US keyboard for typing quotes.
Theoretically possible to map %C2%A8 to double quote, but that might be too clever.
Search term for US international keyboard:
https://discourse.suttacentral.net/search/query?term=%C2%A8root%20of%20suffering%C2%A8&include_blurbs=true&_=1533317593504
Search term for US keyboard:
query?term=%22root%20of%20suffering%22&include_blurbs=true&_=1533317593501
The %C2%A8 is the UTF-8 for the diaerisis.
Resolution: added FAQ to Search page on wiki