Find all the discussions that mention a given topic‏

This tool only gives us top 10 articles, I am wondering How can I get all articles related one topic? I am doing a research based on TMA, and I think it's very helpful. I am not a LDA expert, Could you tell me where is the setting file in source code to modify the articles number. Thanks.

[cjrd]

Better late than never: I'll make a more explicit settings file for tweaking these types of display properties.