I found this on another site:
Soft Oriental perfumes build on elements from Floral Oriental fragrances by adding scents of spice, incense and amber to create a one-of-a-kind, soft aroma. Light, fragrant bases of flowers and spices create perfumes that emit a classic femininity, not the heavy, sweet aromas that distinguish true Oriental scents. Some modern takes on this exotic perfume category include Opium Eau de Parfum by Yves Saint Laurent and Island Escape of the Secret Moments Collection by Victoria's Secret.
Read more: Oriental Categories of Fragrances | eHow.com http://www.ehow.com/list_6873260_ori...#ixzz1s9QC0SxH
yet another site lists incense and amber as the hallmark notes of soft oriental, so you could search for scents with those notes.
Edited to add;
also if you browes the fragrances on this site- the scents are cetegorized per Michael Edwards classifications: http://www.fragrancedirectory.info/Index.aspx