no vowels function

[snippsat]

The point is that replace can only replace 1 word(as your example) or 1 character.
So if word is apple can't write replace('ae', '')
Have to call replace two times.

>>> text = 'apple'
>>> a = text.replace('a', '')
>>> a
'pple'
>>> b = a.replace('e', '')
>>> b
'ppl'   

But using replace is unnecessary and only make the task more difficult than it is.
Here a hint.

>>> text = 'apple'
>>> letters = []
>>> for char in text:     
...     if char not in 'aeiou':
...         letters.append(char)
... 
>>> letters
['p', 'p', 'l']
>>> ''.join(letters)
'ppl'