Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
wang yong » wang yang, wang yan, wang shiyong
hua gene » human gene, a gene, hua ren
yang tin » yang jin, yang lin, yang jing
ying jin » yang jin, jing ji, yang jie
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 (((wang yong) OR (wang hyoung)))) ka hua gene ((yang tin) or (ying jin)) hong hai ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((dong yang) OR (((wang yong) OR (wang hyoung)))) ka hua gene ((yang tin) OR (ying jin)) hong hai ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((dong yang) or (((wang yong) OR (wang hyoung)))) ka hua gene ((yang tin) or (ying jin)) hong hai ;".
• Adding a wildcard symbol may retrieve word variants: ((dong yang) or (((wang yong) OR (wang hyoung)))) ka hua gene ((yang tin) or (ying jin)) hong hai ;*.