Put the clue in braces. To try this out, set yourself up a small test quiz, with an answer "South Pacific Ocean". Try entering into different answer boxes {South Pacific Ocean}, {South} {Pacific} {Ocean}, {South} Pacific Ocean, and {S}outh {P}acific {O}cean to see what different effects you can get. You'll also need to check the type-ins for each answer.
I asked the quizmaster via the Contact Us tab at the bottom of the home page. I don't think there are any written instructions you can find out this sort of stuff.
219-Getting appears under both 6 and 7 letters