On my Iphone I search for a word contained in a cards check list, I get no result

Gavin Waldeck

For Example

Card Name: Utensils

Item in CheckList Keyword: Gas lighter

 

I need Trello to tell me in which card the keyword "Gas lighter" is

Blair at Atlassian

Try this:

  checklist: "Gas lighter"

There are more search operators listed here!