Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
gene yang » gene bank
yang min » yang mind, yang jin, tang min
hong ghi » zhong zhi, hong g
hong hai » shang hai, zhong tai, dang hai
lin hua » li hua, lin chun, lin hwai
jin hua » jin zhuo, ming hua, ying hua

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

• Performing a fuzzy search may retrieve terms with similar spellings: dong yang ((lin hua) OR (jin hua)) gene yang min ((hong ghi) or (hong hai)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang ((lin hua) OR (jin hua)) gene yang min ((hong ghi) OR (hong hai)) ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "dong yang ((lin hua) OR (jin hua)) gene yang min ((hong ghi) or (hong hai)) ;".
• Adding a wildcard symbol may retrieve word variants: dong yang ((lin hua) OR (jin hua)) gene yang min ((hong ghi) or (hong hai)) ;*.