contains

checks for an exact match, so it doesn't really fit your use case.

Did you mean the first query to be

"Hel"

or really

"Hl"

? If the latter: how should that match? using regex

"(?i).*H.*l.*"

?

I think he wants to check whether the taget string contains all of the characters of the query string. @lab?

that would be a strange filter. Better wait than speculate

Sorry for the late reply @nkiesel @karelpeeters I got kick out of a library (there're closing) 😛 The query is really

Hl

, as in the target string contains all of the characters from the query string. Since Hello and Hell both have "h" and "l", they are chosen.