Perhaps you should try some spelling variations:
boon siong » soon siong, boon chong
vii chang » viii chang, ii chang, vii anhang
shang kai » shang hai
yang jui » yang judy, yang di, yang xi
yi chen » jui chen
yang li » yang lin, yang di, yang xi
wang li » wang lei, wang lin, tang li

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: fan ((vii chang) OR (boon siong)) yi chen ((((yang li) OR (wang li))) OR (yang jui)) shang kai ;~.
• Adding a wildcard symbol may retrieve word variants: fan ((vii chang) or (boon siong)) yi chen ((((yang li) or (wang li))) or (yang jui)) shang kai ;*.