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
tan puay » tan hua
tuan hua » tan hua, tuan vu, yuan hui
longer a » longer _

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