Petal Search is a possibly mobile device only search engine product from Huawei. There does not appear to be any website where it can be used. The "Petal Search" marketing page on the Huawei website shows several screenshots of it being used through apps.
PetalBot Search Engine Spider
Evidence of Huawei's search engine can be seen in web-server logs on English-language websites. They do not seem to care, not even a little, about Nordic languages such as Swedish and Norwegian.
Huawei crawls websites using a spider which identifies itself as
"Mozilla/5.0 (Linux; Android 7.0;) AppleWebKit/537.36 (KHTML, like Gecko) Mobile Safari/537.36 (compatible; PetalBot;+http://aspiegel.com/petalbot)"
We know this because the PetanlBot is aware of this sites existence. It has, so far, managed to avoid our robots.txt listed
PetalBot is only crawling using a mobile phone user-agent which would indicate that they do not plan to launch a version targeting desktop/laptop users.