First would be to mix it up with pattern. I always try to get a good variety in when go a little crazy on pattern. Mix up oversized prints with small and everything in between. Also get a good variety of types of pattern, like not all florals, or geometric, etc. The photos below do a good job of blending in different patterns.
It seems that most of these fabulous spaces have a Moroccan element, sometimes with the architecture, sometimes with some fabulous tile work.
Now let's talk about furniture. Probably the furthest thing from accomplishing this look would be to have a bunch of big box store furniture. Finishes should not match, neither should the legs on chairs, etc. This look requires some pieces with a considerable amount of detail. Let's look at the following pics to give you a better idea of what I'm trying to say.
Photo Credits: http://www.bloglovin.com/frame?post=1461663603&group=0&frame_type=b&blog=1616448&link=aHR0cDovL21haXNvbmJvaGVtZS5ibG9nc3BvdC5jb20vMjAxMy8wOC9ib2hlbWlhbmlzbS5odG1s&frame=1&click=0&user=0, http://www.poeticwanderlust.com/, http://cdn.homedit.com/how-to-achieve-bohemian-or-boho-chic-style/, http://blog.styleestate.com/style-estate-blog/40-chic-rooftop-terrace-designs.html, http://dishfunctionaldesigns.blogspot.com/2012/08/dreamy-bohemian-bedrooms-how-to-get-look.html, buzzfeed,