How convert this pattern
Some_Word>[\n\t\r].*?[\n\t\r].*?[\n\t\r].*?<symbol>BK<\/symbol>
When I'm used this with the less command, then I not found nothing.
P.S. I checked here that patter with the text and it work correctly:
before bla bla<Some_Word>
ssssssssssssssssssss>
dddddddddddddddddddd>
ccccccccccccccccccccc <symbol>BK</symbol>
after bla bla>