a customer of mine reported this to me:

When using a WYSIVYG editor that saves the product description as html encoded, something like "Sisältää" in description is not found using the search, because it becomes "Sisältää"

Reason is obvious... the search uses the keywords as is and "Sisältää" != "Sisältää"

I made a temporary fix for the customer, so that the SQL query for the search in description part also includes a html encoded version of the keyword.