Matching Any Keyword:
A match will be found if the poem contains ANY of the keywords.
The more keywords used, the greater the number of matches that will be found.
Matching All Keywords:
A match will only be found if the poem contains ALL of the keywords.
The more keywords used, the fewer the number of matches found.
Close Keyword Match:
Searches for the 'word piece' in any existing word.
For example, searching on 'art' would match art, part, parts, and artist.
Exact Keyword Match:
Only searches for the exact word. For example, searching on 'art'
would only find a match on 'art', but not on 'arts' or 'part'.