How about actually phrase searcihing!
Typing in "No Bombs" for 1979 brings up a series of rubbish. This isn't acceptable for a paid site. https://www.britishnewspaperarchive.co.uk/search/results/1979-01-01/1979-12-31?basicsearch=%22no%20%2bbombs%22&exactsearch=true&retrievecountrycounts=false&sortorder=score
I've been told this is because the site doesn't search for certain words like "No" which makes it useless.