Alibaba Group Holding Ltd. raised its full-year sales forecast after quarterly results beat estimates, as Chinese spending stays strong and the company wrings revenue from fledgling areas such as cloud computing, entertainment and search. China’s biggest e-commerce company increased its projection for fiscal 2017 revenue growth to 53 percent, from 48 percent previously. That may help assuage investors concerned that a deceleration in the world’s second-largest economy is curtailing Alibaba’s main online commerce business.