Try this. Go to EDIT - PAGE SEARCH and if "find as you type" has a check mark, then click on it. That should un-check it. Hopefully then you can enter your text without triggering the search.
This has been reported a few days ago.
Problems: Core dev is from France = in holidays now.
& AFAIK some code for the support of Asian languages is by mark307 - who makes the lua macro based K-Meleon CCF together with Hao but does not come here often.