You only get 15 moves to make 10 words in this level, but before the letters can be counted they need to be untangled from the vines!
Try to untangle enough letters to start making your 4 letter words first, then move onto doing the 6 letter ones with some help from the crowns you have created.
Remember that you can make longer words and only those letters which are untangled will count, so you could do this to both untangle a few letters and make a 4 letter word, if at least 4 of the letters are without vines on them.
Also, if you make a 5 letter word containing a crown then it will count as a 6 letter word!