Perhaps you should try some spelling variations:
zhang yan » zhang fan, zhang jian, wang yan
rene sang » lee sang
sang minh » kang minah, anh minh, song min
minh hong » minh cong, min hong, linh hoang
tan chia » tuan china, than china, can china
hong shu » cong shu, tong shui, wong shiu
yan hua » ya hua, wang hua, tuan hua
tan hua » tuan hua, wang hua, tan puay

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: zhang yan ((yan hua) or (((tan hua) OR (tan chia)))) rene sang minh hong shu ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: zhang yan ((yan hua) OR (((tan hua) OR (tan chia)))) rene sang minh hong shu ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "zhang yan ((yan hua) or (((tan hua) OR (tan chia)))) rene sang minh hong shu ;".
• Adding a wildcard symbol may retrieve word variants: zhang yan ((yan hua) or (((tan hua) OR (tan chia)))) rene sang minh hong shu ;*.