You can't really force an orchid to bloom. They are not tulips or paper white Narcissus.
They are wholesaled though. For example: a few hundred thousand Phalaenopsis orchids are wholesaled to the United States to large vendors here. It could even be millions. Often they are shipped in very low bud.
Nobile Dendrobiums are sold by the hundreds from Hawaii to vendors in the States. They probably number in the hundreds of thousands.
But if these orchids are shipped in bud and you buy it in flower, that reblooming of that plant is entirely depended upon the care by you. Phalaenopsis are easy to rebloom but other orchids have varying degrees of difficulty.
Most people feel that the way you get a nobile type Dendrobium to rebloom is by growing them with abundant water and fertilizer. Then when the growth is mature you give it cooler night time temperature and withhold water to some degree.
