Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, dan yang
yang yang » wang yang, wang yan
hua gene » human gene, a gene, hua ren
yang tin » yang lin, yang jing, yang mind
yang jin » yang jie, yang jun, ying jin
hong ghi » zhong zhi, hong g
hong hai » shang hai, zhong tai, dang hai
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) OR (yang yang)) ka hua gene ((yang tin) OR (yang jin)) ((hong ghi) OR (hong hai)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong yang) OR (yang yang)) ka hua gene ((yang tin) OR (yang jin)) ((hong ghi) OR (hong hai)) ;".
• Adding a wildcard symbol may retrieve word variants: ((dong yang) OR (yang yang)) ka hua gene ((yang tin) OR (yang jin)) ((hong ghi) OR (hong hai)) ;*.