I plan to download only pdf files with a specific string (county) in file name
from a website. I set the rules as:
+*.pdf
+*/*county* 
(the web's url: <http://www.osanm.org/audit_reports> 'rel=nofollow' 
and the url for one file is:
<http://www.osanm.org/media/audits/5001_Bernalillo_County_FY2009.pdf>
'rel=nofollow' )
However, it still downloads all pdf files. I don't know why. Thanks.