input: Write a function to search for any matches of a given string in a list of strings using regular expressions. If a match is found, return "String matches"; otherwise, return "String doesn't matches". If the list is empty, return "No strings to search".
  assert search_strings(["First","Second","Third"], "Second")=="String matches"
  assert search_strings(["First","Second","Third"], "Fourth")=="String doesn't matches"
  assert search_strings([], "Second")=="No strings to search"
output: import re
  
  def search_strings(string_list, target):
      if not string_list:
          return "No strings to search"
      for s in string_list:
          if re.search(target, s):
              return "String matches"
      return "String doesn't matches"