This is the 13658th most frequent Russian word.
некоторыми
"By some" or "with some" (instrumental case of "некоторые").
In this sentence, 'некоторыми' is used as an instrumental plural form of 'некоторый,' meaning 'some' to describe a subset of people involved in the action.
Некоторыми людьми эта идея воспринята положительно.
By some people, this idea was received positively.
Here, 'некоторыми' acts as the instrumental plural form describing a subset of students benefiting from the action.
Он поделился своими знаниями с некоторыми студентами.
He shared his knowledge with some students.
The word 'некоторыми' in this case refers to the methods instrumental in achieving the objective, emphasizing a selection of methods.