Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
hua gene » human gene, a gene, hua ren
yang thi » yang chik, yang di, yang jui
dang thi » dang hai
hong ghi » zhong zhi, hong g, hong hai
yang ka » yang fan, yang yao
ka hua » ya hua, ka chuan

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 ka hua gene ((((yang thi) or (dang thi))) or (yang judy)) hong ghi ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang ka hua gene ((((yang thi) OR (dang thi))) OR (yang judy)) hong ghi ;.
• Adding a wildcard symbol may retrieve word variants: dong yang ka hua gene ((((yang thi) or (dang thi))) or (yang judy)) hong ghi ;*.