import re
def string_found(string1, string2):
   if re.search(r"\b" + re.escape(string1) + r"\b", string2):
      return True
   return False

string1 = "ADDLESHAW GODDARD"
string2 = "ADDLESHAW GODDARD LLP"
if string_found(string1, string2):
    print "Yes"
string1 = "ADVANCE"
string2 = "ADVANCED BUSINESS EQUIPMENT LTD"
if string_found(string1, string2):
    print "Yes"

Yes