Perhaps you should try some spelling variations:
wang yuhan » wang luhang, wang yan, wang yidan
wang wang » wang yang, wang liang, wang yan
yuhan hua » tuan hua, yuan hui, yuhuan huang
hua irene » hua ren
john wong » john song, john bonn
jie song » jin song, kim song, li song
jae song » jae yong, jae young, a 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 wang yuhan hua irene yang ((john wong) or (((jie song) OR (jae song)))) sam ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang wang yuhan hua irene yang ((john wong) OR (((jie song) OR (jae song)))) sam ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang wang yuhan hua irene yang ((john wong) or (((jie song) OR (jae song)))) sam ;".
• Adding a wildcard symbol may retrieve word variants: wang wang yuhan hua irene yang ((john wong) or (((jie song) OR (jae song)))) sam ;*.