Perhaps you should try some spelling variations:
wang yangming » wang yangming's, wang yanling, wang danning
than china » tuan china, han china, wuhan china
sang minh » kang minah, anh minh, song min
shang hai » shang kai, dang hai, chang ha
tan chia » tuan china, can china, dan china
yang jui » yang judy, yang di, yang xi

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: wang yangming ((tan chia) OR (than china)) daun ((sang minh) OR (yang jui)) shang hai ;~.
• Adding a wildcard symbol may retrieve word variants: wang yangming ((tan chia) or (than china)) daun ((sang minh) or (yang jui)) shang hai ;*.