Perhaps you should try some spelling variations:
yan liang » yang liang, wang liang, you liang
wenn man » kann man, wenn das
man tuan » man tun, anh tuan, man can
tuan hua » tan hua, tuan vu, yuan hui
hua gain » heat gain, run gain, hua ban
yang jie » yang jin, yang jui, yang xi
hong hai » shang hai, zhong tai, dang hai

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: wenn man tuan hua gain ((yan liang) OR (((yang jie) OR (yang di)))) hong hai ;~.
• Adding a wildcard symbol may retrieve word variants: wenn man tuan hua gain ((yan liang) or (((yang jie) or (yang di)))) hong hai ;*.