I’d say the restful norm would be http://example.com/posts?term1=xyz&term2=pdq. http://example.com/posts/search/term1=xyz;term2=pdq should work according to HTTP spec.
Thank you for bringing this up – it only just dawned on me that I haven’t seen any mention of this in Ember docs (for the router) or the little I’ve seen of the extant data adapters (for the service calls). Hmm. Kind of a big gap in support for restful pages and services.