How do you make a search box without it needing the entire name?

String.match is great in situations like this.

words = {"Test1","Test3","sdfdsf","sdtgr"}

for i,v in pairs(words) do
	local checkMatch = string.match(v,"sd")

	if checkMatch then
		print(v.." matches with sd!")
	else
		print(v.." doesn't match with sd!")
	end
end

In the code above we have a table containing four strings. Once we declare the table we loop through it and check if the item in the table we're checking currently has "sd" in it. If that's the case we print that it does match with sd. If not, we print it doesn't match with it.