Perhaps you should try some spelling variations:
yuan wang » yuan kang, yuan chang, qian wang
shang kai » shang hai
yan wang » yang yang, qian wang, yan liang
hua gain » heat gain, run gain, hua ban
yang jin » yang jie, yang jun, ying jin
wang lin » wang li, wang qin, yang lin
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) OR (yan wang)) dan hua gain ((yang jin) or (wang lin)) shang kai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((yuan wang) OR (yan wang)) dan hua gain ((yang jin) OR (wang lin)) shang kai ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((yuan wang) OR (yan wang)) dan hua gain ((yang jin) or (wang lin)) shang kai ;*".