The part of a sentence 'matters over' is not correct in written English.
However, you can use the phrase 'matters of' in a sentence. For example, "We discussed the matters of national security during the meeting."
China attempted to smooth matters over by releasing three academics with American ties, all accused of espionage, just ahead of Mr Powell's arrival.
Quality matters over quantity.
South ruffs and thinks matters over.
West discarded the spade eight, and Kay thought matters over.
But when South followed suit, West thought matters over carefully.
The Australian Broadcasting Authority exercises control in certain matters over the commercial private-enterprise services.
In 1958 there were approximately 140 federal matters over which it had investigative jurisdiction.
And I've advised him on a couple of legal matters over the years.
He then led a trump and thought matters over when the 10 appeared on his right.
Discussing such matters over cellphones, he added, "doesn't fit in with the behavior of even the most incompetent corrupt criminal".
If this sounds unrealistic, remember that this is a story about what matters over a reasonably long period of time.
