it would be good if, the same way you can select "Case sensitive" in the find/replace, you could select "ignore white spaces" or "special characters" and only finds plain text with normal spaces.

For example, if you try to find a sentence that has non-breaking spaces, n-spaces, manual line breaks, etc, unless you add all those characters codes to the find field, InDesign won't be able to find the text. If you were able to ignore all those "special" characters you could find and replace the whole sentence with the text you want with normal spaces.

This would be really useful in the translation industry where many times whole sentences need to be replaced by copy and paste from a Word document once the text is already laid out and formatted.