I would like to verified a translation

Hello,

I would like to make a sentence in japanese. I found this following base :
“目の前にない 何か だ”

That can be translate by “Something that not front of me” or “Something that is still unknown to me”

I wanted to add the verb “to see” to this sentence to have something like “See something that not front of me” or “See something that is still unknown to me”

Google translate like that :
“目の前にない 何か を 見なさい”

I’m not sure for this translation and I would like to know how make a correct sentence in Japanese.