Perhaps you should try some spelling variations:
dong yang » dong hoang, wang yang, yang yang
hua gene » human gene, a gene, hua ren
hong hai » shang hai, zhong tai, dang hai
yang yi » yang jui
yang xi » yang jui
yang li » yang lin, tang li, wang li
yi hua » li hua, ya hua, yi hui
tan » than

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 yi hua gene ((((yang xi) or (yang di))) or (yang li)) ((hong hai) or (hong tan)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: dong yang yi hua gene ((((yang xi) OR (yang di))) OR (yang li)) ((hong hai) OR (hong tan)) ;.
• Adding a wildcard symbol may retrieve word variants: dong yang yi hua gene ((((yang xi) or (yang di))) or (yang li)) ((hong hai) or (hong tan)) ;*.