Many stocks stumbled in recent weeks due to ongoing concerns about tariffs, escalating trade tensions with China and other trading partners, and rising interest rates. However, that sell-off also knocked down many high-growth tech stocks that have limited exposure to those headwinds. Let's examine three growth stocks investors should consider buying if the market tumbles further.Tencent (NASDAQOTH: TCEHY) owns WeChat, the top mobile messaging app in China, and a sprawling portfolio of games that make it the top video game publisher in the world.