Perhaps you should try some spelling variations:
boon chong » boon siong, joon chang
chong jui » chang jui, chong suk, chong yi
dang hari » dang hai
jui chen » yi chen
yang jie » yang jin, yang xi, yang jun
yang jui » yang judy, yang xi
yang yi » yang xi
a boon » a book

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: a boon chong jui chen ((((((yang jie) OR (yang jui))) OR (yang di))) OR (yang yi)) dang hari ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "a boon chong jui chen ((((((yang jie) OR (yang jui))) or (yang di))) or (yang yi)) dang hari ;~".
• Adding a wildcard symbol may retrieve word variants: a boon chong jui chen ((((((yang jie) OR (yang jui))) or (yang di))) or (yang yi)) dang hari ;*.