This problem can be overcome through government policies that improve access to education and trainings.
This is one of the rare occasions when low-band Indonesian IELTS candidates add ‘s’ to a word!
Admittedly you will occasionally see training as a countable noun, but the uncountable form is far more common. Think of training (uncountable) as a synonym for education (aslo uncountable).
A convenient way to compare the frequency of word forms in written text is to make an Ngram: