Perhaps you should try some spelling variations:
agung thang » gung thang
tuan china » wuhan china, can china, taiwan china
han china » hang china, than china, can china
wang ping » wang jing, wang ning, wang peng
wen wang » wei wang, chen wang, weng fang
wang hui » wang hua, wang zhi, wang he
wang wei » zhang wei, wang zhi

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: agung thang ((han china) OR (tuan china)) wen wang ping ((wang hui) OR (wang wei)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "agung thang ((han china) or (tuan china)) wen wang ping ((wang hui) OR (wang wei)) ;~".
• Adding a wildcard symbol may retrieve word variants: agung thang ((han china) or (tuan china)) wen wang ping ((wang hui) OR (wang wei)) ;*.