Product search with 2 or more words

Hello,

I need some help with search product endpoint. I have succeed in generating authentication needed, and succeed in getting products using one word only, but failed to get products using two or more words query.

This is working,
/products?oauth_consumer_key=xxx&oauth_nonce=xxx&oauth_signature=xxx&oauth_signature_method=HMAC-SHA256&oauth_timestamp=xxx&page=1&search=something

But this one is not working,
/products?oauth_consumer_key=xxx&oauth_nonce=xxx&oauth_signature=xxx&oauth_signature_method=HMAC-SHA256&oauth_timestamp=xxx&page=1&search=something+else

I have checked how I generate signature key and it seems fine (I can get products using one word query everytime). I have the “something else” in my product list and can search it using search bar inside Woocommerce dashboard, but I get 401 status using the link.

{“code”:”woocommerce_rest_authentication_error”,”message”:”Invalid signature – provided signature does not match.”,”data”:{“status”:401}}

Any insight will be helpful. Thank you!