If you are matching across newlines, are you not reading line by line? If the data is in one big string, perhaps you want something more like:

#!/usr/bin/perl

my $txt = '
         none          bing 
         some          bong 
         any          bang  ';

while ( $txt =~ /^ {9}(\S+) {10}(\S+)\s*$/mg ) {
  print "'$1' '$2'\n";
}
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qq