Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, dan yang
yang yang » wang yang
gene yang » gene bank
yang min » yang mind, yang jin, tang min
min hong » amin hong, tin hong, min hyoung
hong ghi » zhong zhi, hong g, hong hai
yi hua » li hua, yi hui, 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) or (((yang yang) OR (wang yan)))) ((yi hua) or (ya hua)) gene yang min hong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong yang) OR (((yang yang) OR (wang yan)))) ((yi hua) OR (ya hua)) gene yang min hong ghi ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong yang) or (((yang yang) OR (wang yan)))) ((yi hua) or (ya hua)) gene yang min hong ghi ;".
• Adding a wildcard symbol may retrieve word variants: ((dong yang) or (((yang yang) OR (wang yan)))) ((yi hua) or (ya hua)) gene yang min hong ghi ;*.