pirxnotes on Nostr: "search field is a string describing a query in a human-readable form, i.e. "best ...

"search field is a string describing a query in a human-readable form, i.e. "best nostr apps". Relays SHOULD interpret the query to the best of their ability and return events that match it. Relays SHOULD perform matching against content event field, and MAY perform matching against other fields if that makes sense in the context of a specific kind."

https://github.com/nostr-protocol/nips/blob/master/50.md#:~:text=search%20field%20is%20a%20string%20describing%20a%20query%20in%20a%20human-readable%20form%2C%20i.e.%20%22best%20nostr%20apps%22.%20Relays%20SHOULD%20interpret%20the%20query%20to%20the%20best%20of%20their%20ability%20and%20return%20events%20that%20match%20it.%20Relays%20SHOULD%20perform%20matching%20against%20content%20event%20field%2C%20and%20MAY%20perform%20matching%20against%20other%20fields%20if%20that%20makes%20sense%20in%20the%20context%20of%20a%20specific%20kind.