The phrase "good knowledge on" is correct and can be used in written English.
You can use this phrase to mean that someone has a solid understanding of something. For example: "She has good knowledge on the history of the country."
The good knowledge on registration entitlements can be illustrated by the quote of one participant in the in-depth interviews: " Yes, I know I am entitled to get registered with a GP, but I have been waiting for 2 months, as I need someone to accompany me to the GP surgery".
"Firstly, Quarkslab [has] a pretty good knowledge on DRM penetration testing.
Conclusions Healthcare workers did not show, in this study, good knowledge on Hospital Acquired Infection international recommendations.
It is useful to know in advance as you get good knowledge on how to handle the premature.
In such approach, good knowledge on the accuracy of Ga68-PSMA-PET to establish micro-metastatic involvement is therefore essential for patient selection.
The survey participants had a good knowledge on factors associated with a high risk of post-surgical adhesion formation, similar to those quoted in the literature [10].
"Gordon will be running things at Murray Park, but he also has a good knowledge on the commercial side, which is a great benefit.
A good knowledge on the exact composition, structure and development of the skin is important in understanding its function and eventually in engineering artificial skin.
We used a questionnaire, where participants answered simple questions about concepts related to god class to group the participants: those with "bad" and those with "good" knowledge on code smell concepts.
Respondents revealed good knowledge on HIV prevention subjects.
Only 35.9% had good knowledge on the symptoms.
