That's really not how to make a word search quiz. Check out other word searches and do what they do. That's a formatting critique. In terms of the quiz itself, all but one of the words is horizontal, and none of them are backwards. It's a simple matter of reading each line. Try a bit harder to add some challenge. In its current state, it's not going to nominated. 1 star.
Great quiz! Can you consider putting each letter into a 'cell' like in a table? That would be interesting. Also not to be nitpicky but the S in 'Asia' doesn't get highlighted. Great quiz though