input: Write a function to count occurrences of a search term in a given string.
  assert countSearchTerm("hello world, hello universe", "hello") == 2
  assert countSearchTerm("aaaaaa", "aa") == 3
  assert countSearchTerm("abcdabababab", "ab") == 5
output: def countSearchTerm(s: str, term: str) -> int:
      count = 0
      start = 0
      while start <= len(s) - len(term):
          pos = s.find(term, start)
          if pos == -1:
              break
          count += 1
          start = pos + 1
      return count