Perhaps you should try some spelling variations:
xiaoping than » xiaoping how
xiaoping shi » xiaoling ji, xiaoping _, xiaoping how
sang minh » kang minah, anh minh, song min
minh dang » minh cong, mich dann
dang hadi » dang hai
china du » china due, china des, china den
du sang » du yang

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) OR (xiaoping shi)) china du sang minh dang hadi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang ((xiaoping than) OR (xiaoping shi)) china du sang minh dang hadi ;*".