adding 127.0.0.1 api.bing.com to host file and creating update.db to smarturl folder works for me ! thanks you so much 7twenty for the solution and to others who help me. you guys are srsly the best support team ! :lol
i just hope that dev team is aware on this and remove this on future version of maxthon. because honestly, no one wants xxx suggestion on their browsers ! ;P