input: 
  def fix_syntax_errors(code_snippet: str) -> str:
      """ Takes a string of Python code with syntax errors and returns the corrected code.
      The function should detect and fix issues such as incomplete expressions, missing 
      operators, and undefined variables by wrapping them in try-except blocks that print
      informative error messages.
      >>> fix_syntax_errors('def test ():\n    x = 5\n    y = 3 \n    z')
      'def test():\n    x = 5\n    y = 3\n    try:\n        z\n    except NameError:\n        print("NameError: Name \\'z\\' is not defined")'
      """
  
output:     
      try:
          exec(code_snippet)
      except SyntaxError as e:
          lines = code_snippet.split('\n')
          corrected_lines = []
          for line in lines:
              try:
                  exec(line)
                  corrected_lines.append(line)
              except NameError as ne:
                  corrected_lines.append(f'try:\n    {line}\n'
                                         f'except NameError:\n    print("NameError: {ne}")')
              except SyntaxError as se:
                  corrected_lines.append(f'try:\n    {line}\n'
                                         f'except SyntaxError:\n    print("SyntaxError: {se}")')
          return '\n'.join(corrected_lines)
      return code_snippet
  