Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, dan yang
yang yang » wang yang, wang yan
yang mind » yang cindy, yang jin, sang minh
hua gene » human gene, a gene, hua ren
tang min » chang min, sang minh, tang li
hong ghi » zhong zhi, hong g, hong hai
xi hua » xie hua, li 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)) xi hua gene ((yang mind) or (tang min)) hong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong yang) OR (yang yang)) xi hua gene ((yang mind) OR (tang min)) hong ghi ;.
• Adding a wildcard symbol may retrieve word variants: ((dong yang) or (yang yang)) xi hua gene ((yang mind) or (tang min)) hong ghi ;*.