Perhaps you should try some spelling variations:
yang liang » wang liang, yan liang, yang yang
yang guang » yang yang, yan guan
china past » china 21st
china pt » china part, china path, china post
long do » long d, long du, longer do
yang 2 » yang _, yang 8, yang d
yang 4 » yang 47, yang _, yang 8

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 liang) OR (yang guang)) than ((china pt) OR (china past)) ((yang 2) OR (yang 4)) long do ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang liang) or (yang guang)) than ((china pt) OR (china past)) ((yang 2) or (yang 4)) long do ;~".
• Adding a wildcard symbol may retrieve word variants: ((yang liang) or (yang guang)) than ((china pt) OR (china past)) ((yang 2) or (yang 4)) long do ;*.