[{_id:1,resourceId:"375749d7-a828-4a7b-acc0-77539fbcb7b4",name:"bla random word"},{_id:2,resourceId:"375749d7-a828-4a7b-acc0-77539fbcb7b4",name:"bla"}]

db.collection.find({"$expr":{"$let":{"vars":{"input":"bla random"},"in":{"$or":[{"$regexMatch":{"input":"$name","regex":"$$input"}},{"$regexMatch":{"input":"$resourceId","regex":"$$input"}}]}}}})