Perhaps you should try some spelling variations:
boon chong » boon siong, joon chang
chong you » chang you, thing you, chong yah
you check » you hack
dang hadi » dang hai
yang jun » pang jun, yang jin, yang judy
yang jui » yang judy, yang xi
ha boon » a boon, ha joon
yang yi » yang xi

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: ha boon chong you check ((((((yang di) OR (yang jun))) OR (yang yi))) OR (yang jui)) dang hadi ;~.
• Adding a wildcard symbol may retrieve word variants: ha boon chong you check ((((((yang di) or (yang jun))) or (yang yi))) or (yang jui)) dang hadi ;*.