You won't find a very good selection of Asian prints (Oriental designs) at JoAnn. They tend to come from higher end manufacturers that cater to quilt shops. But there are plenty of on line resources for Asian prints. these should get you started.
http://www.fabric.com/quilting-fabri...Source=LeftNav
https://www.fabricdepot.com/index.ph...Page&pageid=14
http://www.fabricandart.com/asian_fabrics.html
http://www.quiltknit.com/Oriental-Fabrics_c_8.html