Perhaps you should try some spelling variations:
yuan wang » yan wang, yuan kang, yuan chang
wang dan » wang yan, wang ban, wang yidan
hua gain » heat gain, run gain, hua ban
yang jin » yang jie, yang jun, ying jin
wang lin » wang li, wang qin, yang lin
hong hai » shang hai, zhong tai, dang hai
dan hua » tan hua, wang hua, dong hua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: yuan wang dan hua gain ((yang jin) or (wang lin)) hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: yuan wang dan hua gain ((yang jin) OR (wang lin)) hong hai ;*.