I have mostly heard about the sitelink search box which is visible on the google search. I have seen many e-commerce website like filpkart, amazon, cartrade & many more having this feature. So, I want to have that on my website. I have made many tries, but I failed. Can you please tell me by seeing my website, that any modification I need to make on my website . If no then please let me know there are any successful wordpress plugin for sitelink search box via which I can install it on my website too.
I have found the code for it.
"query-input": "required name=search_term_string"
Please help me out with this issue.
Thanks in advance
The page I need help with: http://autoportal.com