Hello,
Spurred on by @Jeff_Hager , I made a new version. 
There is only one criteria search which can be a list of words (full or partial) or a word or phrase in “” for an exact search. I also added a few more options. See the detail below:
VERSION 2
* Parameters
*
* String: string to search
*
* Separator: use of a specific character to separate the elements of an array.
* Returns the elements found separated from the same separator.
* (Search for example in a 'Joined List').
*
* Escape characters: replaces the characters with a space, allows searches
* to be insensitive to certain characters
* (such as for example city names with a '-')
*
* Search: search criteria, either a list of words (complete or partial) to search,
* or a word or an expression between "" for an exact search
*
* Uppercase: uppercase Sensitive.
* (1 : active, 0 : inactive (default))
*
* Ignore Accent: ignore accents in the search.
* (1 : active, 0 : inactive (default))
*
* Word: searches only whole words
* (1 : active, 0 : inactive (default))
*
* ------------------------------------------------------------------------
* Remarks
* Spaces at the beginning and at the end are automatically removed.
* The order of words in the search does not matter.
Demo
Link YC
https://Search-V2.manun2.repl.co
Source