Bloomberg reports that to get a flavor of the changing sentiment on China's economy, look no further than web searches made on Google.In 2014, search interest reflected the nation's rising prowess, with phrases such as "China largest economy," "China number 1 economy" and "China overtakes U.S. economy," according to data provided by the search engine giant. There were negative searches too, reflecting a slowdown already underway, but most queries were upbeat.That changed over 2015. After a $5 trillion stock market rout and scant sign of any economic turnaround, web surfers increasingly googled terms like "China economy collapse," "China economy crash" and "China economy crisis."