searchtermstringrequired
Opoint search expression: keywords and 'quoted phrases', section prefixes (header:, summary:, body:, author:, url:), wildcards (spot*), proximity ('Trump Biden'~5), boolean AND / OR / ANDNOT, and filter ids from /suggest (lang:en, geo:1203, site:318, media:576). Example: "header:spotify AND lang:en".
