# Example title regex
my $title_regex = qr/ Table \s ( \d+ ) :  /xms;

# Check only the five previous matches ( Could also keep checking until you find a match with a while )
for ( 0 .. 5 ) {
       # Get previous paragraph
       # Get Text

       # Exit or do somthing else if the title is found.
       last if $text =~ $title_regex;
}