Perhaps you should try some spelling variations:
den xiaoping » deng xiaoping, wang xiaoping, _ xiaoping
xiaoping tan » xiaoyang tang, xiaojing a, xiaoping _
tan china » tuan china, than china, can china
minh dang » minh cong
mich dann » ich dann, mich das
le sang » lee sang
le dang » le duong

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: den xiaoping tan china ((le sang) OR (le dang)) ((minh dang) OR (mich dann)) (hai OR hari) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "den xiaoping tan china ((le sang) OR (le dang)) ((minh dang) or (mich dann)) (hai or hari) ;~".
• Adding a wildcard symbol may retrieve word variants: den xiaoping tan china ((le sang) OR (le dang)) ((minh dang) or (mich dann)) (hai or hari) ;*.