Perhaps you should try some spelling variations:
wang ying » wang yang, wang jing, wang ning
wang yong » wang yang, wang hyoung, wang yan
hong hong » hong kong, hong jong, hong ng
hong chen » hong cheng, chang chen, hong sheng
2.4 best » 2.4 test, 2.4 pest, 2.6 best
chen yun » chen yu, chen yue, chen yiqun
4 best » 3 best

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: ((wang ying) OR (wang yong)) chang ((2.4 best) OR (4 best)) hong hong chen yun ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang ying) OR (wang yong)) chang ((2.4 best) or (4 best)) hong hong chen yun ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang ying) OR (wang yong)) chang ((2.4 best) or (4 best)) hong hong chen yun ;*.