ive been noticing something specific that seems not good: sometimes if you search for a series of words as an exact match, sometimes it will match but other times it doesn't, depending on which string of words you use from an article.

e.g. lets say a webpage has the following text on it: "hello my name is john my favorite color is red" .. searching for "my name is john my favorite" might find the page, but searching "is john my favorite color is" will return 0 results; even though the quote exists and should turn up the same result