Perhaps you should try some spelling variations:
yang liang » yang yang, peng liang, yang guang
wang liang » wang yang
yan liang » you liang, yan wang, yan zhang
hua gain » heat gain, run gain, hua ban
sun hua » sun hsuan, tuan hua
yang xi » yang yi, yang jui
hong g » hong ng, hong w, hong 7

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 (((yan liang) OR (wang liang)))) sun hua gain ((yang xi) OR (yang di)) hong g ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yang liang) or (((yan liang) OR (wang liang)))) sun hua gain ((yang xi) or (yang di)) hong g ;~".
• Adding a wildcard symbol may retrieve word variants: ((yang liang) or (((yan liang) OR (wang liang)))) sun hua gain ((yang xi) or (yang di)) hong g ;*.