The first message you get when you have a title that contains less than 15 characters. The second message seems to only trigger if your question consists of a single word of 15 characters or more (like the original revision of this question. There don't seem to be any other checks, not even whether the words are real.
Having at least 2 words that hit at least 15 characters seems to be sufficient for getting past this. Whether you'll get a list of related questions or "no related questions can be found" depends on your terms. But for example, "SPLongOperation 1" provides 2 results on Stack Overflow.
Separate from this is a simple Regex that checks if the title contains any of the following words:
If it fires off, then it gives a red warning that the question is subjective and is likely to be closed. This is independent of the above warnings, though.