Perhaps you should try some spelling variations:
liang guang » yang guang
things were » things here, things we, things work
wang liang » wang yang
dong sind » dong sin, dong bin, dong ping
things a » things _, things 1
tan yang » dan yang, tan ying, tan yong
guang 3 » gang 3, guang eu, zugang 3
3 smart » a smart, 4 smart, 3.2 smart

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 liang guang 3 smart ((things a) OR (things were)) ((tan yang) OR (dong sind)) ;~.
• Adding a wildcard symbol may retrieve word variants: wang liang guang 3 smart ((things a) or (things were)) ((tan yang) or (dong sind)) ;*.