Perhaps you should try some spelling variations:
china zhang » china chang, cheng zhang, china han
chin chang » china chang, chain change, colin chang
lang yan » wang yan, wang yang, zhang yan
tuan hua » tuan vu, yuan hui
yang hui » yang jui, wang hui, yang muxi
wong yue » wang yue, hong yu
tan hua » wang hua, tan chia, tan puay
ma wong » ma hong, ma rong

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: lang yan ((((tuan hua) OR (tan hua))) OR (yang hui)) ((chin chang) OR (china zhang)) ma wong yue ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yan ((((tuan hua) OR (tan hua))) or (yang hui)) ((chin chang) or (china zhang)) ma wong yue ;~".
• Adding a wildcard symbol may retrieve word variants: lang yan ((((tuan hua) OR (tan hua))) or (yang hui)) ((chin chang) or (china zhang)) ma wong yue ;*.