Perhaps you should try some spelling variations:
liang yuhan » wang yuhan
wang liang » wang yang
yuhan hua » tuan hua, yuan hui, yuhuan huang
hua irene » hua ren
jin wong » john wong, jin kang, kie wong
jin ying » li ying
jin song » jie song, john song, kim song

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang liang yuhan hua irene yang ((((jin wong) or (jin ying))) or (jin song)) sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang liang yuhan hua irene yang ((((jin wong) OR (jin ying))) OR (jin song)) sam ;.
• Adding a wildcard symbol may retrieve word variants: wang liang yuhan hua irene yang ((((jin wong) or (jin ying))) or (jin song)) sam ;*.