use a “for loop”
read the result from the array into “to lower” to convert the characters to lower case.
use “find substring” to find your search text within the content returned by “to lower”
do your logic, this will repeat for each item in the array, if you want a list of results, you will need to feed successful results into another array to be used for display or whatever you are doing with it.
do not run this every tick unless you want split second changes listed, this will slow things down if done many times, or when the array expands.