Ignoring doc length in query time

Hi, can I create a query to ignore document length in query time?
right now my query looks like this:

"multi_match" : {
"query": "some thing",
"fields": [ "text","title"]

but the title gets too much wight because it's short

That's complicated, I'd read through https://www.elastic.co/guide/en/elasticsearch/guide/master/controlling-relevance.html to see exactly what you are after and so you understand the impact choosing various options can have.