i had the same problem with my eSword v8. 'Search' box doesnt come up.
my desktop screen is a 3840x2160 4k monitor.
but i was able to resolve similar to above advice. close the e-sword program. change display settings to 800x600, then accept. open e-sword. then close it.
and then reverting it back to 3840x2160. then open e-sword again, and click search button, and there it shows itself !
hope that helps. L