Perhaps you should try some spelling variations:
chen yang » chen rong
john song » john wong, john bonn, john ngosong
wang anh » dang anh, wang yang, wang all
tuan hua » tan hua, tuan vu
yuan hui » yuan fei, jaan hui, yang hui
ren yang » ren yan, dan yang, pei yang
song ze » song new, song pae

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((wang anh) or (wang yan)) ((tuan hua) or (yuan hui)) ((ren yang) OR (chen yang)) john song ze ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang anh) OR (wang yan)) ((tuan hua) OR (yuan hui)) ((ren yang) OR (chen yang)) john song ze ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang anh) or (wang yan)) ((tuan hua) or (yuan hui)) ((ren yang) OR (chen yang)) john song ze ;".
• Adding a wildcard symbol may retrieve word variants: ((wang anh) or (wang yan)) ((tuan hua) or (yuan hui)) ((ren yang) OR (chen yang)) john song ze ;*.