Ah, so only when it’s 3 characters or more will the search result show?
I think you can follow the steps below:
1/Add a text entry writing to a user-specific column to serve as your search field.
2/Add a plugin to calculate the length of that term.
3/Add an If Then Else column, if length > 2 then returns the search term, else leave it empty.
4/In your table that you want to search, create a single value column and cast that ITE column above to all rows.
5/Add a final If Then Else column. If single value is empty then true (we don’t “filter” by the term at that point), else if single value is included in let’s say the name column then true, do that for all columns that you want users to search.