How can I find a person living in a different city/country with very little information?

So the background story is this:
I flew from Beijing to Munich in July, a trip that easily could have been the worst 9 hours of my life, but it turned out the be the best flight ever. I was sat next to a young mother and her 20 month old baby girl, who during the first 30 minutes screamed and pooped her diaper like crazy (hence the fear of “worst flight ever”). Soon this little baby girl and I started to play with each other for the entire trip (apart from an hour when she was napping). When we had arrived in Munich I was totally so sad leaving her knowing I’d never see her again. I gave her a little panda teddybear I had bought in Beijing. This 20 month old baby girl made such a huge impression on me and since then, not a day has gone by when I haven’t been thinking about her, wondering how she is, if she is taking care of the panda and all that. I do have some photos of her playing and I have a name (they were Chinese and I am not sure I got the correct name). I know, I think, where they live, in which city and country.

But that’s it. No more information.

I know it might sound weird and all (and cute I hope), but this little girl just…well, she stole a place in my heart and… You know, I would love to get in touch with the mother, send her some photos, exchange emails, get an update on how the little girl is doing. Nothing else, really.

So, how can I track down someone I know this little about? I have googled for hours and hours, trying billions of search combos. I am thinking about contacting newspapers, find other Chinese living in the same city… Any suggestions? I really miss her. A lot… :(