Perhaps you should try some spelling variations:
wang yang » wang yan, wang liang, wang yanling
phang hua » wang hua
zhang hui » zhang yuhui, zhang shuo, chuang hui
john song » john wong, john bonn, john ngosong
tan yang » dan yang, tan ying, tao yang
tan yong » tan hong, tan kong, tan ying
song shu » cong shu, song shin, tong shui

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yang ((phang hua) OR (zhang hui)) ((tan yang) OR (tan yong)) john song shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang ((phang hua) OR (zhang hui)) ((tan yang) OR (tan yong)) john song shu ;".
• Adding a wildcard symbol may retrieve word variants: wang yang ((phang hua) OR (zhang hui)) ((tan yang) OR (tan yong)) john song shu ;*.