Looking on the internet deeply has found these results:

her rather childish is the most popular phrase on the web.

her bit childish 10 results on the web	her rather childish 132 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	... second Mrs de Winter that she is a pale shadow compared with Rebecca, playing on her lack of self Her rather childish desire to compete with the Mock. Turtle leads to a reversal in the words order and, consequently, in the words sense. The subjects taught at ... confidence and her rather childish love for her husband. In her rather childish Pororo pajamas, the migraine inflicted girl sat up in the wild grasses, a hand holding her head by the right temple as she scanned the area ... ... makes for awkward phrasing and contributes to the spaciness of her musical persona, as does her rather childish lyrical point of view regarding life and love.

her bit childish

10 results on the web

her rather childish

132 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

... second Mrs de Winter that she is a pale shadow compared with Rebecca, playing on her lack of self
Her rather childish desire to compete with the Mock. Turtle leads to a reversal in the words order and, consequently, in the words sense. The subjects taught at ...
confidence and her rather childish love for her husband.
In her rather childish Pororo pajamas, the migraine
inflicted girl sat up in the wild grasses, a hand holding her head by the right temple as she scanned the area ...
... makes for awkward phrasing and contributes to the spaciness of her musical persona, as does her rather childish lyrical point of view regarding life and love.