Perhaps you should try some spelling variations:
wang xiaoping » wang xiaodong, deng xiaoping, wang xiaolin
xiaoping than » xiaoping how, xiaoping shi
than china » tuan china, han china, wuhan china
sang minh » kang minah, anh minh, song min
dang hadi » dang hai
china du » china due, china des, china den
yang jin » yang jun, ying jin, shang jin
yang jie » yang di, yang jui, yang xi

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang xiaoping than china du ((sang minh) or (((yang jin) OR (yang jie)))) dang hadi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang xiaoping than china du ((sang minh) OR (((yang jin) OR (yang jie)))) dang hadi ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang xiaoping than china du ((sang minh) or (((yang jin) OR (yang jie)))) dang hadi ;*".