The phrase "into this topic" is correct and can be used in written English.
For example, "We will delve further into this topic during our next meeting."
Perhaps her future projects will delve deeper into this topic.
Mr Summers has looked into this topic before.
The thing is, when I try to sidle my way into this topic, halfway through our interview, I don't want to accuse them of geekery.
Anita Hill, a woman with unusual insight into this topic, agrees that the nature of Weinstein's accusers is the reason that his exposure has proved to be a watershed moment.
As I delve further into this topic, I am interested in hearing from people who have visited an emergency room in the recent past for a relatively minor condition, like stitches, a sprained ankle or a tetanus shot.
Still, research into this topic has been – and remains – scarce.
However, we want to explore if more research into this topic is advised.
On the one hand, many researchers have put plenty time and energy into this topic.
The contrast between scientific inquiry into this topic and creationist commentary is severe.
We will go deeper into this topic in Section "Probabilistic formulation of the weighting function".
To dig deeper into this topic, visit these Understanding Evolution resources: Natural selection: the basics.
