Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, dan yang
yang yang » wang yang, wang yan
gene tang » gene bank
tang min » chang min, sang minh, yang mind
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)) ((yi hua) or (ya hua)) gene tang min hong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong yang) OR (yang yang)) ((yi hua) OR (ya hua)) gene tang min hong ghi ;.
• Adding a wildcard symbol may retrieve word variants: ((dong yang) or (yang yang)) ((yi hua) or (ya hua)) gene tang min hong ghi ;*.