A high-performance corpus-based collocation analysis tool built on BlackLab corpus search software (which relies on Apache Lucene). This project implements word and dependecy sketch functionality ...

Research is an activity where you study or investigate something to learn new things about it. There are some words that we often use together with 'research'. These are called collocations. Learn ...

So, I think the key words here are 'topic' and 'idea'. And what I mean by that is that we use the preposition 'about' with verbs that are usually used with topics, ideas or situations.