Elastic Search and product nomenclature: hyphens and spaces - elasticsearch

Question

I'm having a hard time figuring out how to set up Elasticsearch for the typical product model nomenclature. For instance, a product called "Shure SM7B" should appear as a result when searching for SM7B, SM 7B, SM 7, SM-7... and vice versa: searching for SM7B should give results like SM-7, SM7...
For now, I'm getting this kind of results: if I search for "Roland D 50", I get Roland D 50, Roland D-50, Roland D-550, Roland D-20 and so on... but if I search for "Roland D50", I get only "Roland D50" results.
This is my current mapping/settings:
{
"products" : {
"mappings" : {
"Product" : {
"properties" : {
"article_reviews" : {
"type" : "integer"
},
"brand_id" : {
"type" : "integer"
},
"category" : {
"type" : "text"
},
"category_id" : {
"type" : "integer"
},
"date" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"description" : {
"type" : "text"
},
"has_image" : {
"type" : "integer"
},
"id" : {
"type" : "integer"
},
"last_review_date" : {
"type" : "date",
"format" : "yyyy-MM-dd HH:mm:ss"
},
"min_price" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"name" : {
"type" : "text"
},
"name_order" : {
"type" : "keyword"
},
"price_history" : {
"type" : "integer"
},
"rating" : {
"type" : "float"
},
"reviews" : {
"type" : "integer"
},
"shops" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
},
"widget" : {
"type" : "text",
"fields" : {
"keyword" : {
"type" : "keyword",
"ignore_above" : 256
}
}
}
}
}
}
}
}
Also, I'd need to autocomplete my searches, so for instance, "Shure SM" should show results like Shure SM-7, Shure SM7, Shure SM58, Shure SM 57, etc... narrowing them down as I type.
Any clues? Thank you!