Looking on the internet deeply has found these results:

to go deeper on a topic is the most popular phrase on the web.

to deepen a topic 111,900 results on the web	to go deeper on a topic 114,800 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Cohesion has been necessary to deepen the integration process. This might provide a way to deepen relations with the southern Caucasus region. Commission funding for research and surveys on specific topics to deepen understanding of European VET systems and practices, and their links to the labour market and other education sectors; So, professor, in addition to research I had requested, I allowed myself to deepen some topics and of course I brought entire bibliography... good. The Commission proposes to reinforce Member States' compliance with the SGP and to deepen fiscal policy coordination. Sometimes research institutes are invited to deepen specific aspects around city development. It will deepen a sense of grievance and create new recruits for terrorist activity.	Be brave enough to go deeper. I think you need to go deeper. So, to go deeper, most biologists have turned to submersibles. Three, they allow you to go deeper. You have to go deeper for this one. OK. Go deeper on Winter. But having said that nicely and kindly to my good friend, I would like, if possible, to organise a debate so that we can go deeper into the topic, which is very important. They're sending out a search party To go deeper into the brush.

to deepen a topic

111,900 results on the web

to go deeper on a topic

114,800 results on the web

More popular!

Cohesion has been necessary to deepen the integration process.
This might provide a way to deepen relations with the southern Caucasus region.
Commission funding for research and surveys on specific topics to deepen understanding of European VET systems and practices, and their links to the labour market and other education sectors;
So, professor, in addition to research I had requested, I allowed myself to deepen some topics and of course I brought entire bibliography... good.
The Commission proposes to reinforce Member States' compliance with the SGP and to deepen fiscal policy coordination.
Sometimes research institutes are invited to deepen specific aspects around city development.
It will deepen a sense of grievance and create new recruits for terrorist activity.

Be brave enough to go deeper.
I think you need to go deeper.
So, to go deeper, most biologists have turned to submersibles.
Three, they allow you to go deeper.
You have to go deeper for this one.
OK. Go deeper on Winter.
But having said that nicely and kindly to my good friend, I would like, if possible, to organise a debate so that we can go deeper into the topic, which is very important.
They're sending out a search party To go deeper into the brush.