Question

I lost my lucky charm before the exam. I couldn’t find it _____.

Answer 1

I lost my lucky charm before the exam. I couldn't find it after losing.

Answer 2

I lost my lucky charm before the exam. I couldn’t find it anywhere.

Here, somewhere does not suit because it mentions specific. Nowhere does not suit because it means negative, whereas in the sentence there is already a negative word couldn’t, so anywhere suits for the blank and the sentence becomes complete.

In the sentence, the student says that he/she has lost his/her lucky charm before the exam and he/she couldn’t find it wherever he/she searched. So, for this context anywhere suits well.