Perhaps you should try some spelling variations:
china past » china 21st
tuan china » wuhan china, can china, taiwan china
yang yang » wang yang, wang yan
yan guan » gan guan, yan yuan, yang guang
long 2o » long do, long ago, long ngo
yang d » yang di, yang du, yang _
yang 4 » yang 47, yang _, yang 8
long 2 » longa 2, long _, long a

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: ((yang yang) OR (yan guan)) tuan china past ((yang d) OR (yang 4)) ((long 2o) OR (long 2)) ;~.
• Adding a wildcard symbol may retrieve word variants: ((yang yang) or (yan guan)) tuan china past ((yang d) or (yang 4)) ((long 2o) or (long 2)) ;*.