I’ve tried Google but it didn't help/but it's not helping.

[Maybo]

1. I want to know more about succulents. I’ve tried Google but it didn’t help.
2. I want to know more about succulents. I’ve tried Google but it’s not helping.

Which one is correct?

 

[Tarheel]

Either is OK.

(I am now going to Google "succulents" to see what I find. )

 

[Tarheel]

There's a lot about succulents. Hm.

The first one might indicate that you have given up on Google and might try something else. The second one might mean that you are feeling frustrated, but you are going to keep trying.