Perhaps you should try some spelling variations:
chuan huang » yuhuan huang, chuan bang
choon chuan » chen chuan
wang yang » wang yan, wang liang, wang yanling
yao liang » yan liang, yang liang, you liang
yao yang » yang yang
cheng yi » cheng y, cheng hei, cheng sim
chong yi » chong yah, chong yun, hong yu

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: wang yang ((yao liang) OR (yao yang)) choon chuan huang ((cheng yi) OR (chong yi)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yang ((yao liang) or (yao yang)) choon chuan huang ((cheng yi) OR (chong yi)) ;~".
• Adding a wildcard symbol may retrieve word variants: wang yang ((yao liang) or (yao yang)) choon chuan huang ((cheng yi) OR (chong yi)) ;*.