This will perform a case insensitive text search on the fields event name, user name, worker name, target user, network name, branch name and comment. One can only search for a list of full words, i.e. strings bounded by delimiters. For example the worker name montytestfan-128cores-abcdefgh-uvwx matches abcdefgh but not abcde. To force a word or a combination of words to be included in the result, use quotes like in "dog cat". To exclude a word, precede it with a minus sign like in dog −cat. For more information see https://www.mongodb.com/docs/manual/reference/operator/query/text/#mongodb-query-op.-text .