Perhaps you should try some spelling variations:
yang 5.2.2 » fang 5.2.3, making 5.2.2
yang liang » wang liang, yan liang, yang yang
5.2.2 long » 4.2.2 long, 5.1.2 long, 6.2.2 long
gan guan » yan guan, quan guan, fan guon
tan puay » tan hua
tuan hua » tan hua, tuan vu, yuan hui
long du » long d, long do, long run

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