Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
wang yang » wang yan, wang liang, wang yanling
tan siew » tham siew, mah siew, man sie
hai yang » hui yang, hai anh, dan yang
yao yang » yang yang
3.2 long » 3.2 land
6.2 long » 3.1 long

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: ((wang yang) OR (yang guang)) tan siew ((hai yang) OR (yao yang)) ((3.2 long) OR (6.2 long)) do ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) or (yang guang)) tan siew ((hai yang) OR (yao yang)) ((3.2 long) or (6.2 long)) do ;~".
• Adding a wildcard symbol may retrieve word variants: ((wang yang) or (yang guang)) tan siew ((hai yang) OR (yao yang)) ((3.2 long) or (6.2 long)) do ;*.