As you progress through the game there will be instances when you will get stuck and not have an idea of what to combine next. When this occurs its time to refer to the encyclopedia and although the descriptions in the encyclopedia may at first glance appear comical they do in fact give you a hint on how something can be created or what else can be created.
The encyclopedia itself is separated into groups so even if you find that the item description isn't very helpful seeing the items grouped together will give you an idea if there are still other items in a specific category that haven't been created. If you tap on an item in the encyclopedia you will be taken to a dedicated page that will includes a picture and a witty description. Scroll down and you will find every combination you’ve used so far to make the item, along with the number of combinations you haven’t found yet. The page also includes recipes you’ve discovered that use that particular item and the number of items you have yet to discover which utilize it.