Perhaps you should try some spelling variations:
yang guang » yang yang, yan guan, yang liang
tan china » tuan china, than china, can china
china pt » china past, china part, china path
gang 3.2 » zwang 3.2
3.2 long » 3.2 land
long du » long d, long do, long run
wang » wing, wan, lang

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 yanling) OR (yang guang)) tan china pt gang 3.2 long du ;~.
• Adding a wildcard symbol may retrieve word variants: ((wang yanling) or (yang guang)) tan china pt gang 3.2 long du ;*.