Perhaps you should try some spelling variations:
5.2.2 longer » 5.2.2 younger, 5.2.2 long, 5.2.2 blocher
yang liang » wang liang, yan liang, yang yang
yang guang » yang yang, yan guan
yang 5.2.2 » fang 5.2.3, making 5.2.2
longer do » longer _, longer a, long do
tuan hua » tuan vu, yuan hui
tan hua » wang hua, tan chia, tan puay

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)) ((tan hua) OR (tuan hua)) du yang 5.2.2 longer do ;~.
• Adding a wildcard symbol may retrieve word variants: ((yang liang) or (yang guang)) ((tan hua) or (tuan hua)) du yang 5.2.2 longer do ;*.