Better support for Chinese/Korean/Japanese Characters

Here’s a newly collected article. Its title and content contain SEO, but I didn’t find this result when I searched SEO in the search box. Please tell me why and how to use it?

Same here. There are no spaces between CJK words, so tokenization by spaces won’t work.
For Korean, even if there are spaces, a particle is attached to the word before it, for Korean is an agglutinative language.
In many languages declensions matter, and it would be convenient if regular expressions were to be allowed.
Some CJK words are searchable tho because indexing is on and the webpage contains the separated word.

And new users can post only one image…