Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
wang yang » wang liang, wang yanling
siew pei » siew hai, chew pei, siew ee
pei gang » pei yang, wei guang, der gang
long do » long d, longer do, long ago
long du » long d, long run, long did
gang 3 » gang _, lang 3, wang 3
mah » math

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((wang yang) or (wang yan))) or (yang guang)) mah siew pei gang 3 ((long do) OR (long du)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((wang yang) OR (wang yan))) OR (yang guang)) mah siew pei gang 3 ((long do) OR (long du)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((wang yang) or (wang yan))) or (yang guang)) mah siew pei gang 3 ((long do) OR (long du)) ;*".