Can DT2 index and search Chinese text?

I searched but could not find an answer to this question.

Many of my documents are web archives of Chinese pages and Chinese text in RTF format. But I can’t figure out if DT2 is capable of indexing and searching them. If I search for a Chinese string in my DT database, sometimes there will be hits, and sometimes not. I can’t tell what the pattern is or why it works only sometimes. Any thoughts?