I would like to check how can I purchase an Alchemy Search license?
You can buy the application by contacting the sales team. This is the only way obtain a license for the product. Firstly, visit the product page and choose the version you think it suits you the best, then use the sales contact method to get in touch with the developers.
Product page: http://faxsolutions.opentext.com/alchemy-editions-1.aspx