Regex search across document texts not working

[Hengyi-Yang]

Hi Philip,

I tried to use multiple keywords to search for documents in the Analyzer (3.0.11), but the Regex did not work.

Neither expressions of "A|B" and "(A)|(B)" worked; only the keyword search of one word/phrase that is continuous and perfectly matched worked, without "" or ().
The content I input was mainly in Chinese characters, but when I replaced the keywords with some English words in the Chinese content, it did not work as well. Regular expressions containing Chinese characters work for the "Regex editor" function.

Thank you very much for maintaining the software!!