how to find someone on facebook without name but have age ,city,occupation?

[HijackYou]

There is no way of doing so.

But you can try if you know what city and kind of what company he works. Then you could type in the name of the company into google with the city as well. Then you can confirm the name of the company. Then type in the company into the search box on facebook for example then click on people. Then it'll come up with filter by location so type in the city into location and hit refine search and it should narrow it down a bit.

You can do like this with other known information also e.g Education (School). But its a rare case!
without name its almost impossible.

You can also search him by knowing his Email Address that he uses for Facebook.

Good Luck !!