I just posted a question titled "https://meta.stackexchange.com/questions/258829/questions-that-may-already-have-your-answer-check-on-local-meta-and-metase".
Shadow Wizard found that it was a duplicate of Have "Questions that may already have your answer" on other meta sites show results from MSE as well and of course I agreed and accepted the suggestion to close it.
The question that mine was a duplicate of, never showed up in the "Questions that may already have your answer" list. Although there are six matching words in the same order in both titles (seven if you if you match case insensitive). Can the question matching be improved so that a few (four?) or more exact same, non-trivial, words, matching in the title actually shows such a question title (at the top of the suggestion list)?