An image from CCTV of missing Mt Waverley man Yiwei Chu as he bought lunch two weeks ago.

Police will continue scouring a state park in Victoria on Sunday after a fruitless search on Saturday for a man whose car was found nearby.

It comes more than a fortnight after the disappearance of Mt Waverley man Yiwei 'Carl' Chu, who was expected to pick up his wife from work on April 11 but never showed up.

The 28-year-old was last seen buying lunch at a fast food restaurant in Notting Hill that day, but the search has since focused on Werribee Gorge State Park, more than 80km away.