Getting very close to being stumped. I have no idea why the DS search isn't working. The capitalization issue may be from the collation settings in your products_description table.
Can you go into your control panel (from your hosting provider) and look for an option called phpMyAdmin? Go into that application, select your database (it will be called whatever you named it -- it's probably the only one there), select the products_description table (there may be a prefix on the name if you set one), and look at the structure of the table. In the collation column, does the products_name field have a value of "utf8_general_ci"? If you hover over that value, it should say something like "Unicode, case-insensitive."
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