Certain Characters Not Recognized

When creating links to some products via press releases or other cases, it’s sometimes necessary to say Company® and Product Name™, in such cases using those in the keywords will not link the entire thing. If I create a keyword for just “Company” it links. This isn’t a huge issue but in my case I’d like to link “Company® Product Name™” as a whole, which doesn’t work.

I tried the “International Characters” option too but it didn’t seem to change.