Rated 5 out of 5 stars

top top top tooooop!!!!! finally, a very useful plugin !!!! The donation will surely come !!!!
is it possible to make the square of the search space a little longer?

This review is for a previous version of the add-on (2.9). 

>is it possible to make the square of the search space a little longer?

I will put that as a feature request for the future into the issues on github

https://github.com/opto/Expression-Search-NG/issues/12