Perhaps you should try some spelling variations:
tuan china » wuhan china, can china, taiwan china
twinn ian » wing ian
zhang hai » zhang dai, shang hai, zhang hui
zhang han » zhang fan, zhang yan, zhang hanmo
thanh vu » thanh van, thanh _
yang li » yang lin, yang di, yang yi
yang xi » yang di, yang yi, yang jui

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: twinn ian ((thanh vu) OR (tuan china)) tan ((yang li) OR (yang xi)) ((zhang hai) OR (zhang han)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "twinn ian ((thanh vu) or (tuan china)) tan ((yang li) or (yang xi)) ((zhang hai) OR (zhang han)) ;~".
• Adding a wildcard symbol may retrieve word variants: twinn ian ((thanh vu) or (tuan china)) tan ((yang li) or (yang xi)) ((zhang hai) OR (zhang han)) ;*.