Baidu Inc, China's most-used search engine, is expected to make more acquisitions to boost its mobile business, a move intended to capture growth in the rapidly changing Internet landscape.

The United States-listed company saw its investment in mobile in 2013 pay off with mobile accounting for more than 20 percent of Baidu's total revenues in the fourth quarter of last year, said the company, which announced its unaudited finance report early on Thursday.

Baidu intends to grow the share because it sees tremendous opportunities beyond search, the company's core and dominant business.