Don't support for Chinese

I'am Chinese.And my test site is use Chinese.When I use this module(word
link),I find must put a space before and after the keyword,the word can be
linked.Otherwise it can't be linked.
The content is:

智能车的硬件模块主要包含摄像头模块，电源模块，舵机模块以及电机模块。

智能车的硬件模块主要包含 摄像头 模块，电源模块，舵机模块以及电机模块。

keyword is:

摄像头

I think the reason is:

Because between word and word is nothing in Chinese.

The screenshot had attached.