This brand “nón sơn”  needs document according to the repsonse data below,but SellerCenter don’t need document same brand,can you  please check the reson: 
https://api.tiki.vn/integration/v2/brands?1=1&name=n%C3%B3n+s%C6%A1n, params: {“name”:”nón sơn”}
{“data”:[{“name”:”Nón Sơn”,”is_active”:true,”is_document_required”:true},{“name”:”Nón Sơn S”,”is_active”:true,”is_document_required”:false}],”paging”:{“from”:1,”to”:20,”total”:2,”current_page”:1,”last_page”:1,”per_page”:20}}